Battery-Free Remote Controller

Creative battery-less design, low power consumption RF transmitter/receiver. Minimum remote range over 30m, over 80m on open space.
32bit identification code, smart learning capacity, you can use more than 1 transiver/receiver pair at same place.
Receiver is designed as a power plug. You can use it as light switch controler. The auto-learning design makes it more easy for you to use.