Easy to Use Extremely easy to set up, learn, relearn, and control. Stable and reliable performance with receive sensitivity. Includes two remote controls powered by alkaline 12V 23A batteries for flexible use. Security Control Learning code provides security with a low repetition rate and a relearn mode. You can delete the old code and relearn a code if a remote is lost, ensuring you can always control the device. Power Load Receiver features a 30A relay, enabling control of power electrical appliances for longterm, stable operation. Ready to Use and Strong Signal The transmitter and receiver are prematched and tested before shipment; installation is straightforward. Strong signal that can pass through walls, floors, and doors, allowing steady control from a distance. Maximum range up to 984 ft with no obstacles.