Gikfun IC2262/2272 4 Channel Wireless Remote Control Kits 4 Key For Arduino EK2037 Work: M4 (Jog: Hold outputs let go, let go to stop output) Encoder types: fixed code Transmitting frequency: 315MHZ (SAW frequency stabilization) Operating Current: 10mA @ 12V Transmission distance :50-100M (Open field the receiver sensitivity -100dbm) Work: M4 (Jog: Hold outputs let go, let go to stop output) Encoder types: fixed code Transmitting frequency: 315MHZ (SAW frequency stabilization) Operating Current: 10mA @ 12V Transmission distance :50-100M (Open field the receiver sensitivity -100dbm)