Features: Upgraded your projection screen control with our versatile wireless remote switches. Enjoy easy installation and reliable functionality with our wireless remote switches. You can rotate the motor in the positive or reversals direction with the transmitters (remote control) from any place within a reliable distance; the wireless signal can pass through wall, floors and doors. Control motor of rolling blinds / doors, projection screens, awnings, pumps, winches, conveyors or other appliances and mechanicals with voltage AC220V. It is suitable for the motor of rolling blinds / doors, projection screens, awnings, pumps, winches, conveyors or other appliances and mechanicals with AC220V ,input<500W. Specifications: Material:ABS Working Voltage:AC85-250V Load power: ≤ 500W Working frequency: 315MHz, 433MHz (optional) Receiving Sensitivity: 105dbm Size:Approx.25.7mm/1.01''x42.3mm/1.65''x37.8mm/1.48'' Package Includes: 1Set Wireless Remote Switches note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.