The radio frequency remote control uses RF technology with a working frequency of 433MHz, providing stable signal transmission. High-power capability: Equipped with a 40A relay, it supports high-power electrical appliances for long-term and stable control. Operating modes: momentary, toggle, and latching functions. Strong signal penetration: Utilizes RF technology to transmit signals through walls, floors, and doors, enabling reliable control within a range of up to 984 feet in open areas. Wide application: Suitable for use with lights, electric doors, water pumps, motors, windows, gates, industrial control systems, and security equipment. Color: white and black Material: plastic and metal Size: 54 x 48 x 28mm Package includes: 1 x Remote Control Switch 2 x Remote Controls The package includes only the items listed above; other accessories are not included. Note: Due to lighting and screen differences, the item color may vary slightly from the images. A measurement error of 1-3cm is acceptable.