Features: Each receiving controller can multiple remote High confidentiality, storage capacity, stable performance and low power consumption Remote control and manual control is fully compatible The operation is simple and convenient Specifications: Operating temperature: -10- + 50 C Operating Voltage: AC220 10% / 50-60Hz Transmission distance: 50-100m Operating frequency: 315 MHz Load power :less than 500 W Used For: projection screen, electric curtains, electrical tower, garage doors, Extensible doors, etc. Color: White Material: ABS size: Receiver: 5x8cm Remote control: 4.3x12.5cm Package Contents: 1 x Front Controller 1 x Remote Control Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.