Wireless Smart Doorbell 38 Songs Home Smart 150m Range Plug Doorbell with Temperature Display

1. Product features:
Battery-free wireless doorbell, press to activate wireless signal
It can generate electricity without batteries or wiring. It is easy to install and is green and environmentally friendly.
Environmental friendly. Simple and elegant appearance
High-end design, looks very beautiful. Doorbell ok
Can be used with wireless receivers, smart switches and other wireless devices
The receiving device can remotely control electrical appliances.
Easily realize single control, dual control, multiple control, etc.
Interactive control. It's not just a doorbell, it can also be used as
Light control to turn on or off.