Electric Window Opener With Remote Control SPECIFICATION: Working Volatge:24 V DC +/-10% Input Voltage:110v/220v +/-10% Sliding Distance:2000mm, if longer, price is higher Gross weight: 3.50kg Package size:47.24(L)*3.94(W)*3.54(H)(m) The Package Details: One complete set window opener include the accessory: window opener housing,chain,motor,bracket,screws,receiver,remote control Functions Of Sliding Window Opener: 1.The control function of single control or group control. 2.Simple and fast installation. 3.High-grade,beautiful,generous shell. 4.Holographic intelligent digital remote control switch window (additional remote control is required) 5.Wind,rain and snow automatically close the window (additional weather sensor is required)