Wireless Doorbell, Self-Powered Doorbell, No Battery Required, Wireless Door Chime, Waterproof Push Button with 150m Range, 38 Chimes, 4 Volume Levels and LED - White

【Latest Technology RF Push & Battery-Free】This wireless doorbell is self-powered, requires no cables or batteries, protects the environment, and saves you money. When the transmitter is pressed, it generates its own electricity and sends a signal to the receiver. No more worrying about damaging the doorbell when changing batteries! 【38 Ringtones & 4 Volume Levels】Our wireless stereo doorbell speaker delivers rich, clear sound. It offers a wide range of 38 ringtones and 4 volume levels (including mute) to suit your personal preferences. Press and hold the volume button to return to the first ringtone (Dingdong). With its memory function, the wireless doorbell remembers your last settings after a power outage. 【No Crosstalk or False Alarms】This small wireless doorbell has strong penetration and anti-interference capabilities. The range is up to 152m (500ft) through obstacles and up to 305m (1000ft) in open areas. It won't affect other devices in your home or your neighbors' and ensures you never miss a visitor, even if you're a few rooms away or on another floor. 【Easy Installation】Simply connect the mini receiver to an outlet and attach the transmitter to a wall with the included accessories, including 2 screws and a piece of adhesive tape. Our doorbells can be used for homes, apartments, schools, country houses, offices, and more. This wireless, battery-free chime also makes a lovely Christmas, birthday, or anniversary gift for any homeowner or business owner.