SMART CONTROL METHODS: Motorized shades has a variety of control methods, Remote control, multi-channel remote control can control up to 17 rolling curtains. APP control, through TUYA APP can control the lifting of the curtain at any time, and can set the fixed time to automatically open and close. Smart Voice control, voice control with ALEXA or Google Asisstant (all versions), just say "Open the shades" and the shades will open automatically. Features 100% Polyester full blackout textured fabric with back layer Voice Control APP Control Remote Control Transportation damage or parts lost can be replaced free of charge