1) Kinetic Eco Self-power Wireless Plug-in Doorbell, No battery required for both transmitter and receiver.
2) Push button is rated IP47 weatherproof and durable for outdoor use.
3) Excellent imported ABS materials keeps itself from getting higher temperature & interference.
4) 32 different sounds for selection, DIY your style. 4 levels adjustable volume control, sound volume >85dB.
5) Self-learning code technology is able to eliminate interference.
6) Super heterodyne technology, the operation range up to 150 meters on open air.
7) Receiver sounds with flashing LED light indicator provides audio and visual form of notification, convenient to people including the hearing impaired.
8) Easily plug receiver into an electrical socket (no batteries required for main receiver). CE, FCC, RoHS certified.
9) Widely used: House , Apartment, Office buildings, Hotels, Factories.