[Newest PUSH-RF Technology & Battery-Free]Our self-Powered wireless doorbell,no wires or batteries required. When the transmitter is pressed, it generates electric power itself and sends a stable signal to receiver. Never worry about damaging the wall or doorbell during battery replacement again! It can reach up to 150,000 Clicks, 20 year maximum lifespan!Dustproof and waterproof, working temperature ranges from -4 °F-140 °F, withstands various harsh weather conditions.   

[38 Chimes & 4 Volume Levels]Our wireless doorbell use stereo speaker delivers rich and crisp sound.Our wireless doorbell offers a wide selection of 36 chimes and 4 adjustable volume levels (include mute mode) for your personal taste.Long press the volume button to return to the first chimes(Dingdong).With memory function ,the wireless doorbell remembers your last settings after a power outage,don't need to adjust it every time, save more energy and time.   

[NO Crosstalk & NO False Alarms]Our doorbell has strong penetrating power and anti-interference.Multiple obstacle area is up to 500ft(152M), up to 1000ft (305M) in open areas. Our doorbell will not interfere with other equipment in your home or those of your neighbors and ensures you will never miss a visitor, even if you are a few rooms away or on another floor. Flashing light with audio alert indicators which is easy for people including the hearing impaired to notice.   

[Easy To Install]Just plug the mini receiver into a socket and fix the transmitter on a wall with the accessories provided,including 2 screws and a piece of double-sided bonding tape.Our doorring is suitable for home, apartment, school, villas, office, dog potty communication doorbell and more. This no battery required wireless doorring makes a fine holiday present, birthday gift, or anniversary gift for any home or business owner.   

Plug Type:US Plug,it applies to Canada, India, Japan, Mexico, Thailand,Taiwan, the United States, the Philippines and so on.   

size: 6.6*6cm   

Material:ABS   

colour:white   

Package Contents:   

1 * Transmitter (no battery request)   

1 * Plug-in receivers   

1 * User manual   

Only the above package content, other products are not included.   

Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.