No Battery Doorbell With Kinetic Energy Remote Switch

Plug-in wireless doorbell with kinetic Wireless Doorbell transmitter. This plug-in chime unit can be inserted into any socket around your home. The weather resistant kinetic bell push requires no battery and comes already paired to the chime unit so is ready to use straight out of the box. - This kinetic wireless doorbell is power by universal input voltage 100-240v. - Transmitter is self-powered with kinetic technology, it generate electricity by itself continuously when press the bell push button by finger, the lifetime is as long as 20,0000 presses. - Operating range up to 150 metres on open air, which is applicable for villa, multi-story houses or big property.            - The transmitter is waterproof IP44, better suited to withdraw tough working environment.                                               …