Turn on lights wirelessly with this setup, Complete with 2 switches and receiver. Transmitter (Remote) :Operating frequency: 433MHzPower by 2 Pcs 3V CR2016 Battery (Battery included )Material: PVC;Button: 2 buttons;Size: 60mm x 30mm;Operating voltage: 3V ;Operating Current: 12mA;Transmitting power: 10mw;Modulation mode: ASK (AM).Encoding type: Learning.Transfers distance: 20~50m Controller (Receiver) :Input Power: AC85-240V 60HZ/50HZMax current: 10 ARF Frequency: 433MhzWorking temperature:-30~+80RF working mode: superheterodyneReceive sensitivity: >97dbmTransmitting distance: more than 50 m ( open space)Remote storage:10pcsSupport remote type: Learning code 1527codeSize: 47.4*42*22.8 (mm) Feature: 1. New mini round wireless panel switch(50mm x 50mm x 15mm)2. 10A power: suitable for most equipment, safer to use3. Mini body: can be directly installed in the switch bottom box, maintenance and installation are more convenient4. Up to 50 meters remote range. The more obstacles, the shorter the distance, the more serious the signal loss.5. After turning off the power, turn on the power again, the device status is off. How to get the signals? Step 1: Press the learning button(on the Receiver) twice . Wait for 3 seconds;Step 2: Press one button on the remote control. Wait for 3 seconds. Succeed. How to clear the signals? Only one step :Press the learning button(on the Receiver) 8 times.