... easy to encode 4.1,2,4CH Wireless Remote Control with 2 channels 24v DC Welcome to Shenzhen Mingqian Technology ... study button, release the study button after the study light is turned on. Within 20 seconds, press one ... the transmitter to send the signal, if the light flash one time and turn off , the code ... press the study button in 6 secs until the light is turned off. Here show you some pictures about ...