Replacement battery Compatible with Models: Zen Vision M Video Zen Vision M | Specifications: Voltage: 3.7V, Capacity: 1500mAh, Size: 85.8 x 49.1 x 3.95mm, Type: Li-Polymer, Gross Weight: 74.0g | Replacement battery Part Numbers: DVP-HD0003 BA20603R79914 | 1 year warranty, 90 days exchangeable!!! | We provide 7*24 hours "worry-free after sale" service. If there are any questions,please send email consultation, we will reply within 24 hours as soon as possible!.

COMMON FORMAT: 5 AuthorizID CR80 Blank Printable 26 Bit access control cards formatted with the 26-bit H10301 standard format used on most access control security systems. | COMPATIBLE: These isoprox compatible contactless cards work with the same 26 bit weigand readers that both the 1386 ISOProx and 1326 ISOProx key cards work with. Compatible 125khz card readers include Proxpoint Plus, Thinline II, MiniProx, RP40, RP10, RPK40, RP15, Prox80, ProxPro, EntryProx 4045, Bosch ARD-AYJ12, Viking PRX-2, and many more. | APPEARANCE: (Formally INTELLid) 85mm X 54mm X 0.8mm white clamshell keyless entry cards | FACILITY CODE: These RFID access control cards come in the facility code (site code) 46 | TECHNICAL SUPPORT: Get help programming your cards with our tech support team.

[UNIQUE DUAL-TIP DESIGN] - One pointed and one flat tip for considerate and convenient use | [ MATERIAL] - Made of stainless steel with CNC processing for solid, durable, and rust-resistant performance | [PROFESSIONAL MAINTENANCE TOOL] - Suitable for film lenses, telescopes lenses, surveying prism lenses, microscopes lenses, spotting scope lenses, etc. | [ADJUSTABLE JAWING OPENING] - Easily adjust the jaw opening with just one screw for versatile lens disassemble | [LIGHTWEIGHT AND PORTABLE] - Compact and easy to carry, this tool set is perfect for any photography enthusiast

The USB-C Digital AV Multiport Adapter lets you connect your for Mac Book with USB-C port to an HDMI display, while also connecting a standard USB device and a USB-C charging cable. | The device allows you to mirror your for Mac Book display to your HDMI-enabled TV or display in up to 1080p HD. | Simply connect the adapter to the USB-C port on your for Mac Book and then to your TV or projector via an HDMI cable (sold separately). | Use the standard USB port to connect devices such as your flash drive or camera or a USB cable for syncing and charging your i Phone, i Pad, or i Pod. | You can also connect a charging cable to the USB-C port to charge your for Mac Book.

Input : 100V - 240V worldwide | Replacement: This Adapter is a Brand New Replacement One, Not Original | Over Voltage output Protection, Over Current output Protection. Short Circuit output Protection. | High Power exchange efficiency to control working temperature and stable working. | Package include & Note：1 x Adapter Charger, Please make sure that you choose the right adapter before ordering.

Safety: Our Products are CE / FCC / RoHS certified, tested by the manufacturer to match and / or exceed the OEM specifications. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) | This Adapter is a Brand New, High Quality Never USED (non-OEM) | Compatibility: 12V AC DC Adapter For Uniden Bearcat BC-100XL BC100XL BC55XLT BC-55XLT BC-50XL Radio Scanner 12VDC Power Supply Cord | Note:please make sure the model of your device before buying

This waterproof case is compatible with SJ6 Legend camcorder. | Quality PC material and stainless steel parts, sturdy and . | A must accessory for diving, surfing, or outdoor cycling. | Good waterproof effect, help to take pictures in the deep sea. | Convenient maintenance and cleaning, long service life.

KPOP MARKET (HANTEO & GAON Chart Family Shop) will ship your order from South Korea. | Release Date : 2023.07.13 (Items will be shipped sequentially after the release date.) | 100% Original Brand New Item. Sales volume is reflected in the HANTEO and GAON Charts. | Safe packaging with traceable delivery

Compatible with TCL 30 XE 5G | DOES NOT come with a screen protector | Soft inner and hard outer layers absorb and deflect impacts, open access to ports and speakers (no port covers) | Thin profile slips in and out of pockets | Includes OtterBox limited lifetime warranty (see website for details)

【POWERFUL COOLING】The phone cooler adopts semiconductor refrigeration technology, 5 blades ultra-high speed cooling fan (7500 tr/min), and a maximum temperature drop of up to 24℃, keeping the cellphone at the optimal temperature. Note: Plugging in is required for use. | 【SIMPLE CONTROL】The phone gaming cooler is with a physical switch for power on/off. Built-in type-c interface, plug-and-play. (Note: The package does not include a power cord.) | 【COMPACT & LIGHTWEIGHT DESIGN】The mobile games cooler weighs only 74g in a small size, leaving more space for hand operation and being without overheavy burden. | 【QUIET OPERATION】The cellphone cooler adopts a noise-reduction design, < 39db running sound, and allows you to comfortably play games and watch videos. | 【UNIVERSAL COMPATIBILITY】The cooling fan fits 2.71-3.34 inches phones with flexible retractable clamps. The clamps of the radiator are with rubber pads and a stepped design, protecting against scratches and mistouch of the phone.

Sold as 1 KT. | Safe and effective for cleaning all types of high tech screens, including LCD, plasma LED, smart phones, tablets and laptops. | Exclusive "no-run" screen cleaning formula can be sprayed directly on screen. | Cloth is machine washable for repeat use.

Compatibility: Compatible with camera cage or external side handgrip with strap slot (width larger than Φ10mm) on both upper and lower sides, or L-Bracket/baseplate with strap slot on the lower side. Please make sure half cage with a wrist strap hole on the bottom when work with your half cage. (A camera split ring is required when using with the L-Bracket/baseplate, and the split ring is not included) | Quick Adjustable and Detachable: The top adopts a convenient press buckle locking method, Convenient for disassembly. The hand strap comes with a -style snap which allows for quick adjustment of tightness to ensure security. It could be quickly tightened without loose with a gentle pull. The strap adjusts to fit hands of all sizes and snaps on easily | Secures Your Camera: Improving shooting stability and safety, effectively protecting your camera from dropping. The surface of the hand strap is made of PU material, which makes the strap wear-resisting and durable | Breathable and Comfortable: Filled with high-quality material, covered with microfiber leather, the hand strap will bring better shock-proof experience and excellent effect of moisture absorption and perspiration, to keep hands dry and comfortable | NOTE: 1. This product must work with cage, side handle, L-bracket, bottom plate with a strap hole. (width larger than Φ10mm) 2. This product does NOT include baseplate. 2. Do not expose to the sun. 3. Wash by hand and dry in a cool and ventilated place

Designed for: Universal product, the steering wheel button is suitable for all car for Android DVD players, and suitable for all 2 din car DVD players. | Convenient to Use: Wireless remote control player, allows you to answer calls, and you can add subtitles, bring much convenience for you. | Easy Installation: Improve driving safety, this remote control steering wheel button is easy to install, no complicated tools required, save your precious time and effort. | 6 Buttons: All main functions can be customized to set its functions, a total of 6 buttons can be customized to set functions. | High Performance: The latest designs model, with beautiful and generous appearance, and the steering wheel button has stable performance.

Fully Compatible with Forerunner 735XT 010-01959-00 Forerunner 235 GRM0371754 Approach G10 Forerunner 630 Forerunner 220. Perfectly Works like the original battery. | Battery Specifications - Capacity: 180mAh, WH: 0.67Wh, Type: Li-Polymer, Voltage: 3.7V | Dimensions: 29.0 x 19.42 x 3.38mm Weight: 29.0g | All batteries are Certificated with ISO9001, RoHS, CE, UN38.3, and MSDS | Our products have passed strict quality inspection. if you have any questions, you can contact us. We offer full refund or a free replacement without any reason.

Condition: New | As the picture | For P/N: 776213-001 | With 4 pin connector | Package Includes: 1 x CPU Fan

LIGHTWEIGHT: Zippered eReader case made of a lightweight, water-resistant mix of neoprene and elastane featuring cow print design; measures inside | FULL PROTECTION: Shockproof pouch protects your ebook from shocks, falls, drops, bumps and scratches | ZIPPER CLOSURE: Zip closure keeps your e-book safe inside at all times | LIGHT & SOFT: Universal e-Reader pouch slides in and out of pockets easily and feels smooth to the touch

Lightweight and compact design | Extends to 50 Inches | 3 section aluminum alloy legs | Bubble Level Indicator | 3-way panhead with tilt motion

PLUG & PLAY: Supports direct control the music play and music volume from car radio panel and steering wheel. | EASY TO CARRY: Light weight and small, it is and easy to be carried around, easy and convenient to use. | USB FEMALE PORT: Features a USB audio interface, so you can bring along a compatible portable music player or USB drive loaded with your favourite songs. | COMPATIBLE: It can read flash drives loaded with MP3 or WMA music files. Compatible for Honda 2009 Onward. | GUARANTEE: If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. In terms of any problem of this product, you can send emails to us at any time. We will reply you as soon. | | | | |

COMPATIBILITY: Compatible with 27-28" monitor | 3-IN-1: Stores your 27-28" monitor, keyboard and mouse in the storage pouches | PROTECTION: Protects your desktop monitor against dust, fingerprints, scratches and daily wear and tear | STRONG & SOFT: Soft and flexible plastic construction for lightweight durability and protection | DESIGN: Computer monitor and accessory cover with Don't Touch my Screen adds personal style

【PROFESSIONAL LIGHTING】: Use our round softbox to help eliminate harsh light and shadows, which can make your photos look more natural. | 【WIDER COVERAGE】: Use our round softbox to spread the effect of the flash more widely into the room, creating a soft diffused light. | 【VERSATILE】: This speedlight softbox is ideal for shooting weddings, commercials, fashion, portraits and live performances, its pure white surface prevents the final casting of colored light into the scene. | 【UNIVERSAL COMPATIBILITY】: The speedlight diffuser is widely used in flash. Compatible with photographic flash, strobe light, moonlight, etc. Easy to install and remove. | 【EASY TO CARRY】: Durable, lightweight, foldable design with storage bag, easy to carry with you wherever you go.

12 KINDS OF VOICE BEAUTIFICATION:This voice changer has 12 kinds of voice beautification/voice change/K song functions, as well as a fine-tuning function, which can fine-tune the beautification/voice change | 8 FIXED SOUND EFFECTS: This Fine-tuning Sound Changer adds 8 fixed sound effects, suitable for live broadcast/entertainment/subtle. Universal sound card, suitable for mobile phones and computers | ONE-CLICK VOICE CHANGE: One-click voice change, male/female/baby voice/boy voice can be switched freely, supports fine-tuning, matches more voice lines, and the voice is more vivid | SOUND IS MORE BEAUTIFUL: This Sound Card supports multiple voice conversion, supports multiple languages, mobile phone voice converter makes your voice more beautiful | AFTER-SALES SERVICE: If you have any other questions or suggestions about our products, you can contact us at any time, we will answer and improve as soon as possible, and hope you have a pleasant shopping experience

Focal Length: 2.5mm | Lens Type: manual

1.Model:transformer ferrite core /Isolator ferrite ring /RF choke ferrite bead | 2.Part number:T63X38X25G | 3.Size: OD=63mm/2.5 inch ID=38mm/1.5 inch T=25mm/1 inch | 4.Material: MnZn

The Package Length of the Product is 10.2 centimeters | The Package Width of the Product is 8.8 centimeters | The Package Height of the Product is 2.2 centimeters | Country of Origin: UNITED STATES

Rugged and Durable Nylon Straps | YKK zippers and snaps | Quick access top zipper | Water and abrasion-resistant body armor base panel

Eliminates overly bright, washed-out images. | Balances exposure. | Controls depth-of-field. | Allows slower shutter speeds to produce blurred motion effects.

Foldable Design: Easy to use, easy to carry, and can be folded into various shapes at will. | Safety : Professionally camera lens to prevent damage caused by accidental collisions. | Applicable : Used to wrap SLR cameras, lenses, binoculars, cameras, tripods, filters and other equipment. | Reduce Vibration: When changing the lens or placing the lens, you can also spread the cloth on the floor to reduce the vibration. | Function Introduced: After the camera be wrapped by wrapper,you can put in the bag and in this way can make the camera against scratch. | | | | |

【PRESS AND BEEP SAVES THE APP】 Jegoteer Key Finders that make noise work via radiofrequency and need no APP. Simply press the coded button on the transmitter, and the corresponding receiver will beep and flash all at once, helping you to find the item easily you attach it to. Button cells of Jegoteer TV remote finder last for 6-10 months on daily use basis while phone for the key finder locator App dies every now and then. | 【LARGE KEY DESIGN, SLIM TAGS】 The large key design makes operating the key finder like a breeze. Never worry about your award fingers and bad eyesight. Contrarily, the tags are slim and light, at 1.8” x 1.2” x 0.24” and 0.14oz(4g), very convenient for home and outdoor use. | 【LOUD BEEPER, 120FT REMOTE DISTANCE】 With as loud as 85dB beeping volume, even people with poor hearing are able to locate the lost items easily. RF wave of the tracking device for keys can penetrate through walls, floors, cushions, etc., helping you track down items as far as 120 feet away (tested in open area). The distance being well able to cover the whole area of your apartment, it's very helpful as a lost keys tracker, or tracker for wallets, phones, glasses and hiding pets. | 【INDOOR & OUTDOOR USE】With the portable size and light weight, the tracker tags are suitable for both indoor and outdoor use, like when you want to call back the pet from the yard or find your luggage in travel. With 4 stickers and 4 key rings included, you can stick the receiver to the TV remote control, glasses, ear pods, or attach it to keychain, backpack, pets, kids, etc. For mobile phone, a protective cover and lanyard is needed. For wallet, just cast the receiver inside. | 【HANDY AND CONSIDERATE】Set the find my keys device on top of the table or other places where you remember easily. A pry opener included is used for replacing receiver button cells and prevents kids from opening the receivers by themselves. 2 AAA batteries are needed for the transmitter.

Designed with elastic band to fix the filters in its place firmly, which can avoid scratch from sliding | Designed with elastic band to fix the filters in its place firmly, which can avoid scratch from sliding | 9 in 1 bag is compact but spacious, which can store 9 filters, filter brackets and lens adapter or 9 filters (25-95mm) with knuckle thread | Nylon material is durable for long-term use | Double zipper design provides easy access and secure storage | Can carry with detachable nylon strap or just in hand

????【Nylon Material】Nylon material is for long-term use. | ????【With Strap】Can carry with detachable nylon strap or just in hand. | ????【Double Zipper Design】Double zipper design provides easy access and secure storage. | ????【Elastic Band Design】Designed with elastic band to fix the filters in its place firmly, which can avoid scratch from sliding. | ????【9 in1 Filter Carry Case】9 in 1 bag is compact but spacious, which can store 9 filters, filter brackets and lens adapter ring or 9 filters (25-95mm) with knuckle thread.

3 Access Ways --- The access control keypad integrated machine support swipe card or password or password + swipe card to open the door. Support store 1000 users capacity. | Simple and Practical --- Ultra-narrow edge design, Shell is made of ABS fire retardant, panel hard shell rubber film, which has good fire retardant effect, Full programming from the keypad, don't need to connect to computer. | 125Hz ID Keyfobs --- Including 5PCS ID Keychains, pre-programmed with a unique ID number. Compatible EM standard card, Supports authorized card door opening. | Safe and Flexibility --- Support electric lock,NC lock, door bell, exit button, power supply control. Wiegand 26 input and output, 0-99s adjustable door open time. | Widely Used --- Access control system able to deterring unauthorized personnel, Suitable for apartment, office, access control, off-limit area, hotel locks, school campus access, identification, parking lot entry, etc.

【Simple Operation】There are 2 different unlocking methods: Open the door to use ID card and EM card, large user capacity, supporting 1000 card users. Easy to install and operate, based on advanced technology, fast recognition and high sensitivity. | 【Security】Compatible with 1000 user cards, it is more convenient to add/delete users with the administrator card. Anti-vandal, tamper-proof, suitable for installation in different environments. | 【Convenient】The initial setup password is 9999, convenient for using. Access control works with doorbell function, low power consumption. | 【Widely Application】Professional door access control system, fast search speed, widely used in offices, homes, villas, banks, prisons and other places. | 【Durbable】 Made of high quality. Can set up management cards(Deleted card and added card). Has a WG26/34 interface and door bell button, support tamper alarm and data copy function.

40Hrs Extra-Long Battery Life Wireless Earbuds - Enough time to listen to 500+ songs: T08 wireless earbuds can provide up to 8 hours of music on a single charge, or up to 40 hours when used with the LED display charging case (at 50%-60% volume). With powerful fast charging, a 15-minute charge provides up to 90-minute uninterrupted music playback. Say goodbye to low-power anxiety and enjoy none-stop music any time! | T08 New Generation of U-shaped Earbuds - Zero pressure wearing experience: Weighing only 3.9g each, a brilliant combination of innovative U-shaped arc semi-in-ear structure, smooth curve design, and scientific 65:35 internal and external weight distribution ratio make the T08 earbuds nearly perfect fit and stability. Compared to full-in-ear earbud, T08 uses TPU material to reduce the sultry feeling by 50% and double the refreshing. | 0.05S Ultra-Low Latency Bluetooth 5.3 Earbuds - Lossless transmission of audio data: The T08 headphones add Bluetooth flash pairing technology on the base of latest Bluetooth 5.3 version for quick pairing in just a few seconds. Compared with the previous, the power consumption is reduced by 20%, the signal stability is increased by 30%, and the anti-interference ability is increased by 25%. Make sure audio and playback are synchronized to provide an immersive entertainment experience. | Ultimate Hi-Fi Sound Wireless Earphone - Hear all the details: The 13.2mm large dynamic driver allows for a larger vibration area and deeper beats, while the rigid and hard titanium-plated diaphragm offers purer treble performance. In addition, three wide bands and sensitive transient response give you more details, a variety of acoustic parameters have been fine-tuned to achieve the optimum sound quality. | Intelligent Touch Control Ear Buds - Your commands can always be responded: After thousands of experiments, the new generation of T08 smart chips improves the accuracy of touch button by 18.5%, reducing the occurrence of false touch, delay response and key failure on the root. Once touched, you can get accurate response to easily manage playback/pause, answer/end calls, enable voice assistance or select other functions. | IPX7 Waterproof Bluetooth Headphones - A Little Sweat? Don't worry: T08’s IPX7 waterproof rating and dust-proof coating (*only applicable to the earbuds themselves, not for the charging case) protect the earbuds from damage caused by sweat and small raindrops, ensuring durability and longevity whether you're heading outdoors or breaking a sweat in the gym, rest assured that they'll always keep up with the task at hand! | Sleek and Compact Charging Case - Simple yet stylish: The all-new compact charging case design features both smooth, rounded contours and hard edges for a more comfortable grip. The Type-C charging port provides a faster and more convenient charging. In addition, The built-in dual LED power display allows you to keep track of the remaining power in the charging case and the charging status of the earbuds in real time.

Attachable to a range of different photography accessories such as studio light stand, hotshoe/coldshoe adapters, ball heads, wireless flash receivers, triggers and more | Precision made spigot with 1/4" male to 3/8" male threaded screw adapter | Easy to assemble and disassemble by hand | All-metal material, electroplated surface, anti-wear, anti-oxidation, durable features | Approx. Dimension: 2.8inches/7cm, Weight: 5.8oz/164g

【1080P HD WiFi IP Camera】With 1080P HD resolution, wansview home camera displays a crystal clear smooth live video, you can keep an eye on your home anytime anywhere. Camera works with 2.4G WiFi（5G is not supported) | 【Two-way Audio & Works with Alexa】Built-in microphone & speaker offers to communicate with your love when you are out. Works with Alexa, ask Alexa to show your front door, baby room, or anywhere else you have your wansview wifi camera. | 【Smat Pan/Tilt/Zoom & Crystal Night Vision】105° wide-angle enhanced lens combined with 320° horizontal & 80° vertical rotation range create a complete 360° coverage and 4X digital zoom to enlarge the video to see details clearly. 4 pcs 940nm IR Leds give you clear Black/White picture in pitch dark up to 5 meters, no light pollution. | 【Real-time Motion Detection Alert】 Alert notification and 10s video will be sent to your phone, just open Wansview cloud app to check quickly what is going on, will not miss any important movements. SD card and Cloud Storage are optional. | 【Security and Privacy Protection】Financial Encryption Technology for cloud storage, the highest protection of the data for privacy. No one could access to your information without your permission.

Effective Cleaning - Easily removes fingerprints, dust, grease, food particles and smudges from various electronic devices. Suitable for electronic products of Apple, Belkin, Samsung, Lenovo, LG, TCL, etc. | Flexible & Tear-resistant - 3D pearl pattern, cleaning power is enhanced. Thickened fabric, strong absorbency, high toughness, tensile resistance, no wadding, won't leave scratches, lint or static on the screen. | Streak-free - 1 * microfiber cloth, easily solves the residual streaks on the screen without hurting the screen and makes the screen shinier. | Safe & Non-toxic - Alcohol-free, ammonia-free, low-odor, mild and non-irritating to the skin, and friendly to the environment. | Large Capacity / 80 Pcs per Bucket - Added capacity, more tablets than most cleaning wipes products on the market. Bucket design for better sealing and longer lasting use.

【Fairesure Label Tape Compatible with Brother P-Touch Label Maker Completely】- Recommended for Use on ( PT-M95, PT-90, PT-45M, PT-55BM, PT-55S, PT-65, PT-65SB, PT-65SCCP, PT-65SL, PT-65VP, PT-70, PT-70BBVP, PT-70BM, PT-70BMH, PT-70HK, PT-70HOL, PT-70HOT, PT-70SP, PT-70SR, PT-80, PT-80SCCP, PT-85, PT-100, PT-110 and Other Labelers), Value for Choose. | 【Personalized Color Labels】- The Fluorescent Combination Supports Compatible with P Touch Label Maker Personalized Marking. The Labels Replacement for P-Touch Label Tapes are Easy to Use, Easy to Peel Off, Adhere Permanently To Smooth Surfaces Without Curling or Fading Over Time, And Even if They Need to be Replaced, They Simply Peel Off Gently with No Sticky Residue. | 【The Label Replacement for P-Touch Label Maker Tape are Multi-Functional to Meet Various Needs】- The Labels are Compatible with Brother PTouch Label Surface is Waterproof and Oil-proof, Even if the Marker is in a Relatively Wet Environment (e.g., Refrigerator) Clearly Legible; The Label is Resistant to Abrasion and Corrosion, Making the Marker in a Relatively Dry Environment (e.g., Chassis) Easy to Identify. | 【Compatible with Brother M Tape Non-Laminated Labels are Recommended for Indoor Applications】- The Labels are Small, Lightweight and Colorful. Whether They are Used to Mark Homemade Jams for Friends or to Distinguish Cups in the Pantry, The Fluorescent Colors Labels Replacement for Brother Ptouch Tape Make the Marked Objects Stand Out, Allowing Us to Identify Them Quickly While Adding a Touch of Brightness to Monotonous Items. | 【Fairesure Compatible with Brother M Tape 12mm Adds Color to Life】- The Novel Combination of Fluorescent Labels Gives Vitality to Items, Breaks the Monotony of Color, Helps Your Work and Life, And is Worth Choosing.

Size: Small, Dimensions: 7.6" x3.5" x2.8". Compact and easy to store in backpacks or carry-on luggage; recommend for traveling and home storage. | Nice shaped compartment fit for osmo pocket 3, it can hold 1 x osmo pocket 3 with protective cover, 3 x pocket 3 filters, 2 x SD Cards and more other accessories.(Refer to pictures). | With comfortable hand strap for easy carrying. The hand strap can be easily attached to a belt or large bag. | Mesh pocket with a zipper enlarges the storage space for cables or small other accessories and keep them in good condition. | This case can provide dust-proof, anti-scratch, shockproof and waterproof safety protection for DJI Osmo Pocket 3 during storage and transportation,

THAT WAS EASY! Installs in moments: scan the sensor's QR code, give it a name, peel off the pre-applied 3M brand mounting tape protective plastic, press the sensor and magnet to the door and frame, and you have added security to your home or business! | WHY PAY A MONTHLY FEE, when you can secure it for free? Self-monitor and save when you take advantage of our many ways to be notified of alarms and off-normal events in and around your home or business. See "Know Now!" for more information! | MORE THAN JUST A DOOR ALARM! Track activity in your home or business. Be alerted to wandering children and elderly loved-ones. Use the sensors to protect liquor & medicine cabinets, gun safes, storage lockers & boxes. Place a sensor on your fridge/freezer door or lid and know if it was left open, to prevent food loss. Many more applications than just security! | DOOR AJAR! Our unique Door Left-Open reminder can be used to alert you to a door or window left open too long! You define the maximum time. Use our SpeakerHub, our audio hub, to play a tone or message, alerting you when a door is opened or left open too long. | NOT YOUR FATHER'S DOOR SENSOR! This is a sophisticated electronic device, utilizing the latest technology. 24/7 cloud server device supervision monitors your system for online presence, signal strength and battery level, to ensure it will work when you need it! (Hub required, for full functionality) | DEVICE-TO-DEVICE PAIRING: a unique feature, two or more devices can be paired together. Even if the internet is out and the power is down, they will carry out their paired actions. Pair your door sensors to a Siren Alarm, then turn it off when you want to "disarm" your system. Use a SirenFob or FlexFob to control your siren. Make your own custom security system! | DON'T TRY THIS WITH WiFi! LoRa is short for Long-Range. Boasting up to a quarter-mile open-air range, and operating at the 900 MHz band, YoLink devices can be placed where your WiFi probably can't go, such as in basements, separate buildings, even on RVs and boats stored on your property! Prepare to be pleasantly surprised! | SMART OR STANDALONE, you decide: for full-functionality and the full potential of your Door Sensor, a hub with an internet connection is required. Or, you can use device-to-device pairing to pair your door sensors directly to a siren - you can then manually arm/disarm your siren with a SirenFob (search B0BRCX6HVK). Search B09FSS95G9 for the SpeakerHub, or B07TQLKQLJ for the Original Hub. | Batteries included! Two AAA batteries, good for 2+ years standby, are included! | HUB REQUIRED, START SMART: YoLink Hub is the only central controller for YoLink devices, and it connects YoLink devices to the internet and the cloud. Without the YoLink Hub, this smart sensor does not work with the YoLink app and does not support 3rd-party integration with Alexa and IFTTT. Your hub will be compatible with a growing family of smart products for home and business! Search for B09FSS95G9 for a SpeakerHub (our audio, talking hub) or B07TQLKQLJ for the original Hub.