H34B is an ordinary wireless transmitter module that can be modulated using a chip such as EV1527 or PT2262, connected to the DAT pin of this module, and then connected to the antenna to transmit. However, the light emission is not useful, and it is useful to cooperate with the receiving decoding module. Generally, a receiving module (frequency must be relative to the H34B transmission frequency) and decoding chip applications can also be used with RFE151, RFE161 modules to cooperate with the application. After receiving and decoding, a driving circuit can be used for remote control switch, wireless anti-theft alarm, etc.