The radio frequency remote control uses RF technology with a working frequency of 433MHz, providing stable signal transmission. It features a 40A relay, capable of handling high-power electrical appliances for long-term stable control. Offers multiple working modes: momentary, switching, and locking. The RF signal can penetrate walls, floors, and doors, allowing reliable control within a range of up to 984 feet in open areas. Suitable for use with lamps, electric doors, water pumps, motors, gates, industrial control systems, and security equipment. Color: white + black. Material: plastic + metal. Size: 54 x 48 x 28mm. Package includes: 1 x Remote Control Switch, 2 x Remote Controls. Other items not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.