1 pc. DC12V 4 Wireless Relay Switch With 4-Button Remote Control 433MHz #17 : Wireless smart receiver module can be compared with smart remote system wireless kit Controlled equipment protocol requirements for forward and can backward (engine), on and off (switch) various special procedures Wireless control module, which is characterized by high efficiency, stable performance and size Wide shutdown in garage door control, electric door and window control, device control, lighting control, etc Package includes 1 relay receiver module board and 1 four buttons - Inner mesh panties Weekly Voltage: DC12V Computer hardware: 433 MHz Supports Type: Learning Code Operating Modes: Yoga, Self-Locking, Locking Resistive load: 10A (max) Module size: about 68x48x16mm / 2,68x1,89x0,63 inch Whole size: about 73x53x26mm / 2,87x2,09x1,02 inch contains: 1 relay receiver controller 1 four buttons