Long distance: Powerful channel remote control signals can be passed through walls, floors and doors to control the receiver from any position within a safe distance. The maximum range is up to 98 feet / 30 meters and is accessible. Security control: The learning code offers high security due to the low repetition rate and relearn mode, allowing to cancel the old code and relearn the new code when the remote control is lost. It can support up to 16 different remote encodings. Mode of operation: On/off control unit with 4CH 433MHz radio and 2 transmitters. Direction/reverse, start/stop control device. The switch is self-locking and interlocked. Unique Design: The wireless remote control is very easy to install and operate, stable and reliable performance, high receiving sensitivity ( -105dBm). The remote control switch uses wireless coding technology, does not change direction or interfere with each other. Excellent Application: Wireless remote control applications range from simple home remote controls automation such as windows, entrances, garage doors, alarm systems, lifting devices, etc.