LONG RANGE: The signal can pass through walls, floors, and doors, regularly monitoring the receiver from any location within a reliable distance. The maximum range is up to 98ft/30m without obstacle. 4CH FOR MORE CONTROL: Adjustable working mode, control equipment on/off, on/off. Self-locking switch, jogging, interlocking. SECURITY CONTROL: The learning code has a high-security level for its low repetition rate and relearns mode, by which it can delete the old code and relearn a new code when the remote control is lost, for that you can always control it. EASY TO USE: Extremely easy to set up, learn, relearn, and control (please refer to the introduction).Stable and reliable performance, high receiving sensitivity. WIDE APPLICATION: Wide range of applications from the simple home remote control to stand-alone control, such as window, driveway, garage doors, alarm system, lifting equipment, etc. NOTE: Please email us if you have any problems, we are always here to help, thank you!