DC12V 6-Channel Relay RF Wireless Remote Control Switch Transmitter Receiver Kit

Press The 2 Key Again To Disconnect The Relay. Press The 3, 4, 5, And 6 Keys In This Cycle. Press The 2 Key, And The 1 Relay Will Be Disconnected. The Relay Corresponding To The 2 Key Will Be Engaged And Held; 3.

eBay