Home Security Welcome Wireless Doorbell Alarm LED light 32 Songs with Waterproof Touch Button

The wireless doorbell adopt advance wireless receiving and dispatching technology, powerful microcomputer control system, high capacity and superior voice processing technology, up to 32 songs with reliable and stable performance. Doorbell and transmitter connect via wireless learning code, with the function of doorbell, burglar alarm and welcome alarm which suitable for various occasions: like villa, club, leisure center, store, hotel, home, office and meeting room etc.Features: One transmitter can pair with several(max 30) receivers,and one receiver can pair with several(max 30) transmitters. Customize your doorbell according to your need. Ordinary doorbell was average changed a battery once a month ,this doorbell can generate power , press button and Kinetic energy turn into electrical energy . You can save lots of money and batteries every year,and protect environment Long operating range can be up to 500ft(150m) in open space, great for large house including villas, apartment, o