When you are from home, with this curtain motor and the Tuya APP, you can control the curtain by your mobilephone, no need to worry about forgetting to open or close the curtains in 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. The worm-turbo self-locking brake device is adopted to reliable brake and quiet when using. This product is the direct current power su-pply curtain motor, which is safety and reliable. Voice control: With this curtain motor and assistant like Alexa and Google Home, you can achieve to control your curtain by your voice. Power of remote controller: 2 * AAA batteries ( Not included) Rated voltage: 12 current Rated power: 4.5W Rated torque: 0.45Nm Rotating speed: 30rpm Operating temperature: -20~+65 Built-in receiving frequency: 915MHz, 2.4GHz Plug Type:EU Plug,it applies to Indonesia, Germany, France, , Italy and so on Voltage: AC110-240V Colour:White Material:plastic Package Contents: 1 x Smart Electric Curtain Motors Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.