Features: 【Complete Set】This is a complete set, with smart curtain motor, curtain track and ceiling mount tracker, also with wall mount bracket and mounting accessories, you do not need to spend extra money and time to buy accessories. 【APP Remote Control】Cool and fantastic tech design that makes your life so much easier with a simple clicking on your smart phone via Tuya/SmartLife APP, which makes your home smarter. 【Voice control】Compatible with Amazon Alexa Echo and for Google Home / Google Assistant, you can turn on or off the curtain just by voice, free your hands. 【Timing Function】You can set scheduled/countdown timers in the APP to turn on/off your electronic curtain. 7:00 open the curtain, let the sun slowly wake you up in the morning. 22:00 close the curtain, sleep mode for quite comfort. 【Manual Start Function】Under power-on state, pull the curtain about 10cm in one direction by hand, the curtain will automatically open or close. In the case of power failure, it can be opened and closed manually like ordinary curtains. 【Flexible Length Adjusting】Adjustable track can cut to the size as your like to fit the width of your wall. Open from middle and side are allow. Customize stop position, it can be controlled the ratio of opening and closing. 【Sync Status】Real-time curtain status showed on App. Also support RF 433HMz remote control ON/OFF. (The remote controller not included) 【Silent Motor Design】Using high-precision DC motor, low power consumption, low running sound. Dry contact control.