This is a receiver with male and female cable, which can be directly connected to the male connector of the power supply and the female connector of the device, eliminating the trouble of wiring. Wide voltage DC3.7V-12V can be used. Input DC3.7V-12V, output DC3.7V-12V, DC male and female size: 5.5x2.1mm Working mode: MOS tube SCR silent and non-contact (control e positive electrode VCC + ) Frequency: 433.92MHZ Standby & working current: 6mA Load capacity: 3A Code pairing method: The receiver has a learning function, can be equipped with a remote control, and can be set for multiple sets of universal mitter: 1.Buttons: 2 Buttons 2.Working Voltage:DC6V (2PCS CR2016) 3.Operating frequency :433MHz 4.Remote Distance: 20-50M 5.Operating Current: 13 mAh 6.Encode: EV1527 330K Colour:Black Material:plastic Package Contents: 2 x Wireless Remote Control 1 x Cable Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.