No Battery RequiredWireless Doorbell Waterproof, Door Bell Chime with 1 Press Self-Powered Transmitter & 1 Plug-in LED Flash Receivers, 60 Chimes, 5 Level Volumes (Black)

No Batteries Required This wireless doorbell works without batteries, saving battery costs and also protecting the environment from pollution. The Doorbell Wireless generates its own electricity through the force of pressing the external module, and sends a steady signal to the receiver.
60 RINGTONES & 5 LEVEL VOLUMEThe door bell wireless has 60 ringtones and 5 adjustable volumes (ranging from 0: silent mode to 110 dB), the doorbell kit can meet your needs in different occasions. The Wireless Doorbell has a silent mode to choose from, so you dont have to worry about the sound disturbing your sleeping baby. Since the LEDs of the wireless door bell and receiver will still flash in silent mode, LED flashing is a very friendly feature for the hearing impaired and the elderly.
Waterproof Weather ResistanceThe Wireless Door bell is made of high-quality ABS material, which has good fire protection and flame retardant properties. The wireless doorbell is IP55 waterproof and Door bell chime has an operating temperature range of -4°F-122°F, and can withstand a variety of harsh weather conditions.
Extra Long Wireless Range500ft/150M radio wireless coverage, ensuring a strong and stable wireless signal that will not interfere with other devices in your home or neighbors; ensuring you never miss any visitors, even if you are several rooms away or located Another floor.
Easy InstallationWorks out of the box, no pairing required. No wiring and no batteries required when using a doorbell wireless; no drilling or electrician required, installation can be completed in 1 minute: Just plug the receiver into a wall outlet, install the door bell wireless with provided double sided tape or screws. This wireless bell is perfect for large homes, apartments, offices, classrooms, and more.