Features 1、The product has 3 working modes, instantaneous, self locking and interlocking, and is mainly used for switching. 2、This 6 channel multifunction radio frequency receiver controller is used to send open and close signals to 6 relays. 3、The relay board is made of high quality printed circuit board material, durable, high stability, and low power. 4、The operation is simple and easy to use, only need to learn the code of matching the remote control and the receiving controller. 5、It is suitable for electric door, window, lifting equipment, switch, elevator, industrial control, security industry and other fields. Specification Item Type: RF Relay Board Material: Printed circuit board Battery: 2 x 1.5V AAA (Battery Not Included) Application: Relay module Working Current: About 30mA x 6 (relay closed state) Quiescent Current: About 4mA x 6 (relay open state) Working Mode: Instantaneous, self locking, interlocking Work Indicator: Blue light (relay switch indicator light, independent indication for each road), Red light (signal receiving light) Output Mode: Mainly used as a switch Receiving Distance: Approx. 50-1000m / 164-3280.8ft Maximum Power: 2500W x 6 Package List 1 x RF Relay Board 1 x Signal Board 1 x Signal Bar 1 x Remote Control (Battery Not Included) 1 x Manual