Features: Each receiving controller can support multiple remotes High confidentiality, storage capacity, stable performance, and low power consumption Remote control and manual control are fully compatible Operation is simple and convenient Specifications: Operating temperature: -10 to +50°C Operating voltage: AC220V ±10%, 50-60Hz Transmission distance: 50-100m Operating frequency: 315 MHz Load power: less than 500W Suitable for: projection screens, electric curtains, electrical towers, garage doors, extensible doors, etc. Color: White Material: ABS Dimensions: Receiver: 5 x 8 cm Remote control: 4.3 x 12.5 cm Package Contents: 1 x Front Controller 1 x Remote Control Note: Light and different displays may cause the color of the item to appear slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.