Features: Easy to Install: The curtain motor can be directly hung on the curtain T-rail/U-rail, no tools are needed, built-in 4000mAh battery, no complicated wiring, and more convenient installation. Intelligent Voice Control: Voice and remote control can be realized after the gateway is configured(Gateway is not incuded), compatible with Alexa, Google Assistant, TmallGenie, etc. Remote control allows you to control the opening and closing of curtains anytime and anywhere to prevent the furniture from being damaged by exposure to the sun. Temperature & Light Sensor: According to personal work and rest habits, the curtain temperature and light sensor can be set. When the temperature and luminosity are greater than the set value, the curtain will automatically close, creating a comfortable home environment for you. Timer Control: The curtains can be opened or closed regularly. The curtain opens automatically in the morning, you can wakeup slowly under the sunshine, no longer be awakened by the alarm clock, and close automatically at night. APP Remote Control: BT connection with Tuya APP, remote control of the curtain switch, no need to manually pull, very suitable for the elderly with inconvenient legs, making life more intelligent. Specifications: Color: White Material: ABS + PC Quantity: 1pc/ 2pcs(optional) Accessory Type: T-Rail/U-Rail T-Rail Adaptation Size: 7-16mm U-Rail Adaptation Size: 16-30mm Battery: Built-in 4000mAh Lithium Battery Charging Interface: Type-C Charging Voltage: 5V, 1A Standby Power Consumption: 600A Item Size: 112.8 * 65 * 51.6mm/ 4.4 * 2.6 * 2.0in Package Size: 196 * 68 * 180mm/ 7.7 * 2.7 * 7.1in Package Weight: 728g/ 25.7oz Packing List: 2 * Curtain Motor 2 * USB Cable 4 * T-Rail Adapter 1 * Manual