Wireless Doorbell, Automatically Operated Door Chime, No Battery Required, Cordless Doorbell, 150m Range, Waterproof Push Button with 38 Chimes, 4 Level Volume and LED - White

【Latest RF Push and Battery-Free Technology】This wireless doorbell is self-powered, no wires or batteries required, environmental protection and money saving. When the transmitter is pressed, it generates electric current by itself and sends a stable signal to the receiver. No more worrying about damaging the wall or doorbell when changing the battery!

【38 Ringtones and 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 taste. Press and hold the volume button to return to the first ringtone (dingdong). With the memory function, the wireless doorbell remembers your last settings after a power failure.

【No crosstalk and false alarm】This small wireless doorbell has a strong penetrating power and is interference-proof. The range with multiple obstacles is up to 152 m (500 feet) and up to 305 m (1000 feet) in open terrain. It has no impact on other devices in your home or your neighbors and ensures that you don't miss a visitor even if you are a few rooms away or on a different floor.

【Easy installation】Just connect the mini plug the receiver into a power outlet and attach the transmitter to a wall with the transmitter. Our doorbells can be used for houses, apartments, schools, country houses, offices and more. This battery-free wireless chime also makes a lovely Christmas, birthday or anniversary gift for any home or business owner.

Transmission power: Automatic power supply

Doorbell receiver power supply: AC 110-240 (V), 50/60 Hz

Receiver power consumption: 0.25 W

Ringtones: 38 melodies

Volume level: 4 levels

Transmission range: up to 152 m (in open area)

Operating frequency: 433 MHz

Operating temperature: -4°C to 140° C