New patent product of Wireless Kenetic-Energy Switch
on sale now.
The advantages of this products:
Wireless: no need the wire and reached the functions of Switch;
No need the battery: As normal the remote have to use the battery to remote. This new Switch throuch Kenetic energy to remote.
So it'll be broadly apply in varety agea which need to remote the switches and save the batterys.

For more specifications by this link: