1,Wireless remote control transmitter and receiver. 2,No wiring is required and the maximum remote control distance is 100 meters. 3,The receiver is placed in the electric device, panel transmitter can be attached to any place. 4,Common control devices: fan, lamps, router, humidifier, water pump. 5,Occasions applicable: office, hotel, factory, home, and many public places. Features: Wireless remote control transmitter and receiver. No wiring is required and the maximum remote control distance is 100 meters. The receiver is placed in the electric device, panel transmitter can be attached to any place. Common control devices: fan, lamps, router, humidifier, water pump. Occasions applicable: office, hotel, factory, home, and many public places. Specification: Shell color: white Receiver color: black Product material: plastic Voltage: AC80-250V Load power: 30000W, 30A Remote control distance: 100m Panel dimension: approx. 85x85x15mm or 3.3x 3.3x 0.6in Receiver dimension: approx. 6.5x 4.3x3cm or 2.6x 1.7x 1.2in Item weight: approx. 180g Package List: 1 x Panel (transmitter, with 2x CR2026 button batteries in it) 1 x Receiver 2 x Adhesive Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.