Exquisite and compact appearance, made of good quality ABS material, durable and high temperature resistant. Powered by USB, energy-saving and long life time. | Support Bluetooth noise reduction answering, any key answering and support smart phone connection, automatic pairing connection program, maintaining charging connection state. | Built-in antenna, support 10 meters barrier-free transmission distance. | Identify sound frequency by intelligent control chip and generate a reverse signal to filter out external noise (noise and wind) in non-human voice frequency range. To realize high definition calling in any noisy environment. | Bluetooth 4.1, high reduction of high quality music, and the signal is stable and not easy to disconnect in the complex interference environment.

Support RTC, optional serial port, development board's installation is simple, not require particularly complicated operations. | Applied in various environments with strong control ability, which can be convenient to use. | Development board provide 2 kinds of antenna interfaces to meet various needs. | While structure is simple and small size, such a development board supports good wiring. | Compatible with 3.3V and 5V automatic level, development module can adapt to 3.3V or 5V main control board.

Usage: A crossover is a device that separates the sound signals of different frequency bands, amplifies them separately, and then sends them to the corresponding frequency band speakers for playback. | Superior Performance: 3 way crossover has large capacitor, high power inductor, high power special aluminum film resistor, excellent heat dissipation and longer service life. | One High and Two Low, Easy Wiring: 3 way frequency divider supports three way three crossover, one high and two low; with terminal block, easy wiring. | Widely Applicable: 3 way speaker crossover is suitable for various single 10 inch, 12 inch, 15 inch, 18 inch professional conference stage speakers. | Premium Material: 3 way passive crossover is made of premium PCBA material, strong and durable, and pressure resistant, long service life.

[AVOID SURROUNDING SCATTERED LIGHT] When shooting in backlight, sidelight or flash photography, it can prevent the surrounding scattered light from entering the lens. | [PROTECT THE LENS] It can prevent accidental damage to the lens, prevent the finger from touching the lens by mistake, and cover the lens from wind, sand, rain and snow to some extent. | [3 DIFFERENT ADJUSTABLE STATES] The protective lens hood has 3 different adjustable states, which can be used for telephoto lens, standard lens and wide angle lens according to the needs of the lens. | [SCREW CONNECTION METHOD] Screw connection method, suitable for lenses of various brands of corresponding calibers. Easy to carry when you are out, it is convenient for you to take pictures anytime and anywhere. | [HIGH QUALITY MATERIAL] The connecting part of the lens hood and the lens is a metal loop, and with rubber material, which is strong and durable. Specially designed for a tight and secure fit.

The floppy drive using 32‑bit CPU design, with high integration, reliable performance. | Connect to the device through floppy drive interface, easy to install and use. | High quality plastic material manufacturing ensuring maximum durability and reliability. | With high security data protection, ease of installation and user friendliness. | This floppy drive emulator is a great industrial control device, very convenient for you.

Durable Nylon: Spring coiled lanyard is made of durable nylon materials, which is durable and reliable. anti wear, and has a long service life. | Anti Lost: This spring rope can effectively fix your camera or underwater equipment like dive lights, prevent them from falling. Let you rest assured of mountain climbing or underwater diving. | Quick Release: The nylon spring coiled anti lost lanyard strap adopts quick release buckle design for a more convenient use, free your hands to some extent. | Lightweight and Portable: This spring coiled camera anti lost lanyard is light in weight and compact in size, easy to carry and store, very suitable for outdoor climbing, hiking and underwater diving. | Reliable: Strict quality control and quality assurance, high factor, so you can use this anti lost strap at ease.

✡【Zoom Lens】The zoom lens can be used as multiple fixed lenses, thus saving the time of changing lenses.You can change the shooting range by changing the length, so it is very useful for composition. | ✡【Long Working Distance】Working Distance: 55-285mm,Low distortion, high compatibility, can adapt to most industrial cameras. | ✡【2MP High‑Definition Lens】2MP high‑definition lens with optical distortion ＜‑0.1%, providing a clearer field of view. | ✡【After-Sales Service】If you have any questions, please contact us, and we will provide you with professional services in time. | ✡【Fixed and Locked Aperture】The aperture can be fixed and locked with 4‑36mm object sight distance, which is more convenient.

★★★★★High-quality raw materials---Adopt aviation aluminum, CNC precision processing, anodized surface, spring buckle, knob lock, with stainless steel anti-skid nails. | ★★★★★New design---The base plate is specially customized for Sony FE 200-600 F5.6-6.3 G OSS lens. The bracket ring replacement foot uses the original factory interface standard. | ★★★★★Applicable objects---The lens holder ring replacement foot adopts the AS standard and is compatible with RRS / ARCA‑SWISS and other ball heads. | ★★★★★Easy to use---The base plate has reserved 1/4 inch and 3/8 inch threaded interfaces, which can be directly fixed on the tripod plate and the quick release plate. | ★★★★★ Fine workmanship---fine workmanship, simple design, easy installation and operation, and convenient use.

DESIGN STYLE:Hands Free design: with a high elastic headband, it is sweat absorbing and non-slip, more convenient to take photos while doing extreme sports. | 2 IN 1 DESIGN HEADLAMP: short time press to open the Led headlamp, long time press for opening the SOS mode. | NIGHT LIGHTING FUNCTION: The lighting scope is between 5~10 meters, perform natural and high definition records in dark environment, suitable for using at night. | 1080P(1920*1080) HD CAMERA: you can capture any clear and wonderful moment freely. | CONVENIENCE:Small size, easy to carry, does not occupy much space, support maximum up to 32GB storage space(the memory card is not included), ideal for outdoor travel, extreme sports and so on.