Features: Upgrade your projection screen control with our versatile wireless remote controllers. Enjoy easy installation and reliable functionality with our wireless remote switches. You can rotate the motor in positive or reversing direction with the transmitters (remote control) from any location within a reliable distance; the wireless signal can pass through walls, floors, and doors. Control motor for roller shutters/doors, projection screens, awnings, pumps, winches, conveyors or other appliances and mechanics with voltage AC220V. It is suitable for the motor of roller shutters/doors, projection screens, awnings, pumps, winches, conveyors or other appliances and mechanics with AC220V, input <500W. Specifications: Material: ABS Working Voltage: AC85-250V Power: ≤ 500W Working Frequency: 315MHz, 433MHz (Optional) Receiving Sensitivity: 105dbm Size: Approx. 25.7mm/1.01in x 42.3mm/1.65in x 37.8mm/1.48in Note: Please allow 1mm error due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Includes: 1 Set Wireless Remote Controllers