Specifications: Voltage: DC.5VConfiguration: USB charging cablePower supply: USB direct charge Attention: Suitable for 12 square meters of space, it needs to be used in all black environment, and the curtains can not be seen during the day or day.Suitable for heights up to 2.8 meters, there is no light around the effect Package include: Base tow x1Shade x3Data line x1Manual x1