Wireless Doorbell Waterproof Self-Powered 38 Songs Optional Door bell Sets Home Outdoor whith Temperature display Doorbell

Product Features:

Battery-free wireless doorbell that drives wireless signals by pressing to generate electricity, no battery, no wiring, simple installation, green

and environmental protection.The appearance are simple, generoushigh-grade designed which looks very beautiful. doorbell can

be worked with wireless receivers,smart switches and other wireless receiving equipment to remote control electric appliance .which can

easily realize single control, dual control, multiple control and interacting control.It is not only an doorbell, but can also used use as

light control to switch on or off.

Technical parameter