Description: -Remote Control :It can remote control equipments, such as remote control lights, sirens, locks, motors, fans, winches, linear actuators, doors, windows, electric solenoid valves, security alarm, business signs and various devices. -7 kinds functions: jog, self-locking, , 2-way jog + 2 way self-locking, 2-way jog + 2 way interlock, 2 way self-locking + 2 way interlock, 2 way interlock + 2 way interlock -This remote control switch has a wide range of functions, can support two modes at the same time and it is very and convenient. -Adopt wireless coding technology,no direction, non-interferential -This kit has a total of 1 remote control switch remote control, and each button of the remote control independently controls 1 relay. Specification: Type: 4 channel remote control switch Working voltage: DC12V Working frequency: 433.92MHZ Total load power: 500W Remote Control Distance: 100M Package Includes: 1Piece Wireless Remote Control Switch 1Piece Remote Controller Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you.