1、[Wireless Control] Wireless receiver controller has the characteristics of high confidentiality, stable performance and low power consumption. 2、[High Performance] This 4CH remote control relay switch can switch coding by jumper or dial coding. 3、[Remote Control System] Remote control supports the use to form a complete set of wireless intelligent remote control system. 4、[3 Adjustable Working Modes] There are latching, interlock and momentary 3 adjustable working modes, you can switch through pads. 5、[Wide Use] Used in multi channel electric door and window, ordinary electronic lock, switch, electric garage door, window, lifting equipment, industrial automation and control, various anti theft alarm, security, etc. 1 x Wireless Remote Control Switch1 x Relay Item Type: Wireless Remote Control SwitchMaterial: ABSWorking Voltage: DC5VWorking Frequency: 433MHzOutput Method: Switch SignalMaximum Load: 20AWorking Mode: Momentary, Latching, Interlock (Switching Through Pads)Remote Control Built in Button Battery: 2 x CR2016 (75mAh) (included)