Two Modes: Self locking mode(Self holding) and momentary mode (Self resetting) are freely switchable and can be according to different applications. Factory set to self-locking mode, if you need to switch to instantaneous mode, please refer to the manual. Wireless Control: wireless relay remote control switch, which uses 433MHz frequency radio frequency technology, has strong signal that can pass through walls, floors and doors, can control the motor forward or reverse by remote control within 168ft under accessibility. Widely Application: Small size, Can be installed in a small space, widely used in linear actuators, garage doors, traction winches, conveyors, electric awnings, electric curtains, forward and backward motors and any applications with forward and reverse motion capabilities. Easy Installation. Connect the input end of the receiver to the power supply and the output end to the load equipment, that is, complete the installation. This 433MHz forward reverse switch, can remotely control the positive and negative rotation of DC motor through a remote controller. Stable and reliable performance with high reception sensitivity. Working voltage DC 5V to 48V, rated current 10A., Manufacturer: Akfldms