<b>Product Features</b> <br> Compatible with Tuya /Smartlife app, IOS & Android App<br> Compatible with Alexa Echo / Google Home Voice control,Siri Voice control(Need IOS 12 or above system)No hub or subscription required. <br> Reset:<br> Press the any key in this switch hold for 15s until backlight flash that ,means this switch was waiting for pair<br> Need to use with Side-open Shade Curtain Motor with 4 Wires(or 3 wires with control wires)<br> Wireless Remote control by itself APP<br> Voice control via Alexa Echo,Google Home Siri <br> With a blue of indicator.Can find it quickly in the night time .<br> Also with white feedback light when you work so that you ,Can find Monitor the working status.<br> Set working schedule previously.For this it make your curtain automatically turn on and off<br> <b>Work with roller curtain motor with 4 wires.</b> <br> (①brown--open;②blue--common;③black--close;④yellow&green--ground)<br> 1. Connect the curtain wires to wall switch as guide.<br> 2. Remove the panel with screwdriver .<br> 3. Put the switch into switch box in the wall.Install the glass panel.<br><br> <b>US Type Package & Paremeter</b> <br> Power Supply:110V-240V Button:Touch<br> Rated Frequency:50/60Hz <br> Wire Connection:L and N<br> Wireless Range:Indoor 30m <br> Dimension:4.9*2.9*1.5in<br> Load Limit:≤200W/Gang<br> Home automation the easy way: <br> Smart curtain Switch seamlessly. <br> Easily installable, perfect for DIYers. Neutral wire required. <br> Not recommended for use with a metal face plate. <br> Download the Tuya app, and control your curtain up and down from anywhere in the world, right from your phone. <br> No hub or subscription required. <br> <b>Specification</b> <br> Suitable for most of the Americian countries <br> Crystal tempered glass panel will never fade. <br>Fireproof ABS plastic box, prevents excessive heat result in fire, reducing the security risk. <br>