With this product, you no longer need to manually lift the curtain, sometimes, your hands hold-ing things, it is not convenient for you to operate the curtain. With this product, you can open or close the curtains through your mobile phone, the remote control even your voice. It is very easy for you to operate it, come on and try it. Features: With this curtain motor, you can control the curtain through the Tuya APP and the voice control by connect with some intelligent voice assistant, you do not need to pull the motor by your hands, which can save your time. You are free to set your travel limit and stop wherever you want, and the maximum travel is unlimited, give you a better using experience. This product is the direct current power-supply curtain motor, which is safe and reliable. The worm-turbo self-locking brake device is adopted to ensure reliable brake and quiet when using. This type of curtain motor need to connect the g-ateway to achieve the Tuya APP control and Alexa Google Home voice control function, if without the g-ateway, you need to manual to control the curtain. Specifications: Material: ABS Color: white Adapter type: EU, UK, USA, AU (optional) Rated voltage: 7.4V direct current Rates power: 4W Rated torque: 0.45Nm Rotating speed: 30rpm Operating temperature: -20 celsius ~+65 celsius The curtain motor size: 80 * 40 * 35mm / 3.1 * 1.6 * 1.4in The curtain motor weight: 348g / 12.3ounce Package size: 220 * 183 * 45mm / 8.7 * 7.2 * 1.8in Package weight: 572g / 1.3lb Note: This motor is a driving device applied to bead-chain roller blinds and realize intelligent automatic operation. Packing list: 1 * Curtain Motor 1 * Adapter (optional) 1 * User Manual 1 * Set Accessory