RF433 Relay Interruptor Mini Remote Control 433Mhz Wireless Wall Switch 1/2/3 Gang Wall Panel Switch Led Lamp Fan Smart By TNCE Flexible pairing mode Mode 1, you may pair an RF433 receiver with a number of RF433 transmitters Mode 2, you would pair multiple RF433 receivers with one RF433 transmitter NOTE: 1/2/3 gang Remote control, calls for 27A 12V battery; 4 gang remote, requires 23A 12V battery; (not included in package) Wireless Light Switch 433MHz Remote Control 1/2/3Gang Wiring Method Multi-channel management One change can management the multiple RF433 receivers at the identical time 433mhz Strong Signal Note: One RF433 receiver can only store 15 buttons If more than 15 units of buttons are saved, the frist set of data is robotically overwritten How to get the sign Step 1: Press the training button(on the Receiver) twice Wait for three seconds Step 2: Press one button at the handheld remote control Wait for three seconds Succeed How to clean the signal Only one step :Press the training button(on the Receiver) eight instances Wait for 3 seconds