Specification: Receiver module: Product Model: XD-RF-5V Operating voltage: DC5V Quiescent Current: 4MA Receiving frequency: 433.92MHZ Receiver sensitivity: -105DB Size:30x14x7mm Transmitter: Technical parameters of Product Model: XD-FST Launch distance :20-200 meters (different voltage, different results) Operating voltage :3.5-12V Dimensions: 19 * 19mm Operating mode: AM Transfer rate: 4KB / S Transmitting power: 10mW Transmitting frequency: 433M Pinout from left → right: (DATA; VCC;