Wireless Dingdong Doorbell Self-powered 28 Ringtones 4 Levels Volumes Optional Long Distance No Battery Required 1 Transmitter + 1 Receiver,Black

Features: *Self-powered doorbell with full-digital frequency modulation technology,no string code. *With the strong points:ultra low power design,power saving,ultra long distance remote control, stable signal and strong penetration. *The indoor receiver is equipped with 28 chord tones and 4 levels of volumes for your choice. *Outdoor transmitter does not need batteries.No batteries!!built-in energy power generation module for transmitter,so you will never worry about battery replacement and power running out. *Simple appearance design and elegant, unique style,which will make your house more fashionable. Discounted at only: US$ 26.04