Features: *Very convenient to use, simple wiring diagram connection way. RF Remote Control Switch, can through walls. *Support remote control up to 16 pieces. It can connect to the electronic control lock, intercom doorbell, garage door, light, electric curtain, household appliances, motor control, lifting equipment, security system, etc. So that it can remote unlock the door, close the light, open or close the curtain,etc. *Low power consumption, stable performance. Super small body, occupying less space. *The working mode can be changed by yourself: you can switch to Momentary, Latched dual modes as you need. *Pair with Fixed Code:it can work with any remote control with the same frequency (433MHz 2262 Chip), so you needn\'t worry about losing remote control any more. (If the remote control is lost, buy one and pair with the PCB board is OK.) Receiver