★PAIRS & CONNECTS EASILY FOR quick, frustration-free installation anywhere in your home. WHILE OTHER doorbells wireless are DIFFICULT TO SET UP or DON’T WORK CONSISTENTLY, door bells by SadoTech extend OVER 1000FT of RANGE in open areas & are PROVEN TO WORK THROUGH DOORS & WALLS. Great for large homes, apartments, offices & warehouses. And with BATTERY LIFE of UP TO 3 YEARS, you’ll never miss a chime! Use as door chime for business when entering or classroom doorbell for teachers! | ★THIS WIRELESS DOORBELL KIT IS the perfect starter for any wireless door bell user. KIT CONTAINS: 1 wireless doorbell transmitters and 1 plug in smart doorbell receiver, double sided mounting tape, anchors, screws and A23 BATTERY INCLUDED. Sleek, modern LED INDICATOR lights illuminate both transmitter & receiver & can be set at 4 VOLUME SETTINGS, from low for naptime to high during a party. Our extensive COLOR SELECTION means you’ll find the right door bell push button to suit your style. | ★BUILD THE ULTIMATE SMART door bell system – With multiple wireless door bells you can CONFIGURE each door with A DIFFERENT CHIME or ringtone. KNOW EXACTLY WHICH DOOR your visitors are calling from. For homes or offices with multiple entry points, this is CONVENIENT & TIME-SAVING. You’ll soon wonder how you lived without it. And UNLIKE SOME OTHER doorbell wireless, this door bell by SadoTech is truly WATERPROOF & WEATHERPROOF to -4°F/140°F for a system that lasts for years to come. | ★OUR PATENT-PENDING SOUND CHIP holds the LARGEST SELECTION of classy, high-quality ding-dong chimes, NO “TINNY”, ANNOYING ringtones. With 52 TOTAL RINGTONES at 4 VOLUME LEVELS, you’ll feel good knowing our ring chime MEMORY CHIP STORES your chosen doorbell chime selections even when unplugged or turned off. LISTEN FOR YOURSELF! Just SCROLL DOWN to the Technical Specs section below & click the Specification Sheet link to DOWNLOAD the PDF. Open the PDF and play all 52 ringtones. | ★AT SADOTECH, OUR GOAL IS to provide INNOVATIVE, HIGH-QUALITY PRODUCTS at a price everyone can afford. QUALITY IS KEY! We love that our products bring ADDED SECURITY, CONTROL & peace of mind to you, our customers. NEED SPARE BATTERIES, extra add-on buttons, receivers, sensors or a CUSTOMIZED DOORBELL button? Visit our store ➔ www.amazon.com/sadotech. If, for any reason, you don’t love your wireless doorbells by SadoTech, reach out and WE WILL MAKE IT RIGHT.