DC 12V 6 Channel DIY Receiver Relay Module Board With Wireless RF Remote Control SwitchFeature: Jog, self locking and interlocking, three modes can be switched at will The six channel multi function RF receiver controller sends an open signal and a close signal 6 relay. Applications include smart homes, electronic doors, windows, lifting equipment, switches, lifts, industrial controls, security and more. High stability and low power consumption. Easy to use, just learn the code of the remote control and the receiver controller.