Suitable for household curtain tracks, easy to install Applicable track type: Roman pole track (applicable size 15x40mm) Single machines can be freely combined into pairs Product name:Smart home curtain track controller Function APP control/remote control Set open close Temperature/Light Sensing Off induction start switch Graffiti scene mode Control distance: 10 meters With Tuya gateway, it can connect to for Alexa, for Google Home, for Xiaodu, for Xiaoai and other smart speakers. Communication :Bluetooth Power supply (battery):built-in 4000mA lithium battery Voltage:10V Load-bearing torque (tension):8KG-10KG Power:4W Charging current:5V/1A Charging port:Type-C Standby power consumption:180UA Speed:10 seconds/meter Use time:within 6 months Maximum stroke:20 meters APP control distance (barrier-free):10 meters (if remote control is required, a Bluetooth gateway is required) Buy this smart home curtain track controller to make your smarter and more convenient! Colour:White Material:Plastic Size:152x81x75mm Package Contents: 2 * Curtain Robot 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.