You can remote control your curtain by Mobile Phone APP or Google Home. Also the WIFI curtain switch can percentage open/ the curtain(0%-100%). Plug Type :EU Plug,it applies to Indonesia, , , , and so on. Chip:ESP8285(support DIY firmware) Power Supply:AC 95-250V Max Current: 10A/250V Max power:2200W Wireless: IEEE 802.11 b/g 2.4G Security: WPA-/WPA2- How to Make the Curtain Switch to Record the Running Time for Open/ the Curtain. To percentage adjust the curtain in APP,you need to make the switch to record the running time for open/ the curtain. A.The running time for opening the curtain. 1. make that you closed the shutter fully, press the "PAUSE" button for 5s until the indicator blinking,then press the "open" button to open the curtain. 2. When the shutter open fully,press the "PAUSE" button.the switch will record the opening time. B.The running time for the curtain. 1.Make that the shutter open fully,Press the "PAUSE" button for 5s until the indicator blinking,then press the "" button to the curtain. 2.When the shutter closed fully,press the "PAUSE" button .The switch will record the closing time. Colour:black Material: ABS Package Contents: 1 x Smart Curtain Switch Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.