86 type RF433mhz wireless receiver switch smart touch screen transmitter smart switch diy module, no need rewire Feature: new design touch panel remote control, it looks like a touch switch, in fact, it is RF433 remote control,you can use stickers, sticking anywhere to control the switch.There will be a faint light at night, Convenient to control the light. Pls Noted: the customs don't allow to ship the battery, so the product not including any battery, pls purchase the battery at your local! Receiver(wireless module)product parameters Voltage: AC 90-250V Current: 5A power:500W Glass Panel Remote control product parameters Voltage: 3.6V Battery Type: CR2032(not include) Chip: EV1527 Remote control launch distance: 15M Size: 86mm * 86mm pairing with the remote control: press the button of receiver for few seconds when rings one beep, and press the remote control for learning the signal,finished! one beep for "turn on/off" two beeps for "turn on" three beeps for "turn off" four beeps for "clear up the code"