The radio frequency remote control uses RF technology with a working frequency of 433MHz for stable signal transmission. High-power capability: Equipped with a 40A relay, it supports high-power electrical appliances with long-term stable control. Working modes: momentary, switching, and locking mode. Strong signal performance: Utilizes RF technology to penetrate walls, floors, and doors, allowing reliable control within an open area range of up to 984 feet. Wide application: Suitable for use with lamps, electric doors, water pumps, motors, windows, gates, industrial control systems, and security equipment. Color: white + black Material: Plastic + Metal Size: 54 x 48 x 28mm Package Contents: 1 x Remote Control Switch 2 x Remote Control Note: The package includes only the items listed above; other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement tolerance is +/- 1-3cm.