STRONG SIGNAL: Adopts RF technology, the signal can pass through walls, floors and doors, steadily controlling the receiver from any place within a reliable distance. The maximum range is 328 feet unobstructed. High Power Load: With 40A receiver relay, can load high-power electrical appliances to ensure long-term stability control. Safety Control: The learning code has high safety level for its low repeat rate and relearn mode, it can clear old code and relearn new code, when a remote is lost. So you can always control it. Easy to use: Extremely easy to install, learn, relearn and control (please refer to the introduction). Stable and reliable performance, high receiving sensitivity. 2 remote control configuration, more flexible use. Wide application: It is mainly used in lamps, electric doors, windows, lifting equipment, barriers, elevators, industrial control and security industries, etc.