Features:  USB Power Supplys: This curtain motor using external power supplys mode, you only need to plug in the adapter to the power socket correctly to make it work.  Intelligent Controll Way: With this curtain motor, you no longer need to manually lift the curtain, just open or close your curtain by the remote controller. You can easily open or close the curtains while lying on the bed, which is very convenient.  The worm-turbo self-locking brake device is adopted to ensure reliable brake and give you a safer using experience.  You are free to set the travel limit and stop wherever you want, you can set the stop height according to your needs freely.  This motor is a driving device applied to bead-chain roller blinds and realize intelligent automatic operation, you can easily convert your traditional curtains into intelligent curtains.    Specifications:  Material: ABS  Adapter: EUplug, USA plug, UK plug, AU plug (optional)  Adapter inout: AC100-240V 50/60Hz  Battery for remote controller: 2 * AAA batteries (NOT INCLUDED)  Rated voltage: 12V Direct current  Rated power: 4.5W  Rated torque: 0.45Nm  Speed: 30rpm  Working temperature: -20℃~65℃  Protective level: IP20  Built-in receive frequency: 915MHz  Package size: 220 * 183 * 47mm / 8.7 * 7.2 * 1.9in  Package weight: 538g / 1.2lb    Packing list:  1 * Curtain Motor  4 * Pull Rope Wheels  1 * Remote Controller  4 * Screws  1 * USB Cable  1 * Reset Tool