Self-Powered Wireless Doorbell 
Brand：Linptech/领普科技
Color : White  
Product Feature : 
- No battery is require so the product is even more safe and stable
- Lightweight, more attractive and compact
- Just needs you to press a built-in button called worm gear plane generator to produce power
- the new wireless bell requires a very tiny pressure only 350g
- After receiving signal the receiver emit sound and small light hint
- The receiver features 4 levels of volume and has 38 songs to choose Inside hidden LED design, funny to use
- Never be afraid of wet hands any more, safe to use always
- The transmission distance between emitter and receiver is 100m
- The receiver has 3 relay functions, so the transmission distance can be expand to 300 meters

















Click to learn more how it work :