Additional Details ------------------------------ Product description: Specifications: Material: ABS Color: White Suitable Curtain Track Type: T-track(I-rail) / Inside grooved(U-rail) / Curtain rod (optional) Rated Power: 1W Motor Voltage: 5V Rated Torque: 3kg Speed: 20 seconds/meter Movable Distance: maximum learning distance is 20 meters Battery Capacity: 4000mAh lithium battery USB Port: 5V, 1A, Type-C Stand-by Power Consumption: 600A Work Time: about 6 months if open/close twice a day Item Size: 11.3*6.5*5.1cm / 4.44*2.55*2in Item Weight: 216g / 7.61oz Package Size: 17.8*11.4*6.8cm / 7*4.48*2.67in Package Weight: 411g / 14.49oz Packing List: 1 * Curtain Robot 1 * USB Cable 1 * User Manual