NEW Function - Set Switch Working Time according to your need 1) You can make the shutter stop at a percentage according to the time set2) You can set the switch working time according to your shutter's height Suitable for the junction boxes in these Countries, please contact us if you have any question. Main Features- Free APP Name: Smart Life, Tuya- Timing Function, APP remote controlProgram your smart curtain switch on App 'smart life/Tuya', then your curtain, blind, roller shutter can be remote controlled by phone and you can set timing schedule for it, like open at 7:00am, close at 7:00pm, then your curtain blind can open or close automatically when time is up.You can control your smart curtains by mobile phone anytime, anywhere as long as it's with network, Control Your Curtain Anywhere with Your mobile 2G, 3G, 4G network NO LED on Panel ALWAYS ON NO LED on Panel ALWAYS ON, butBefore you add switch in Smart Life App, the led on 'Open' button will be on, it's an indicate light for you to connect WIFI, after you add it in App, it will be off. - Hands-free Voice Control Smart Blind Switch Compatible with Alexa, Google Home and IFTTT. With voice control to turn on and turn off the curtains. - Group Function and Device SharingYou can create group in the APP to manage all the blinds in your house and share the device to all your family members. Installation Method User Manual with 8 pages detailed instruction for how to connect curtain switch, how to connect App.4 languages available, Spanish, French, Germany, and English. Please contact us if you have any special demand for the user guide. How to mount the switch on wall? Specification Input voltage: 100-250 VAC, 50 / 60HzWiring: Neutral Wire, L1, L2, Earth WireMax Load: below 600 WApp Name: Smart Life, TuyaVoice Control: Google Assistant, Amazon AlexaWi-Fi Standard: 2.4 GHz 802.11 b / g / n (Not support 5Ghz)RF Frequency: 868MhzStandby Consumption: below 0.5WTouch Switch Dimensions: 86mm*86mm*35mmRemote Dimensions: 90mm*30mm*10mmTouch Switch Color: SliverRemote Color: White What's in the Box? 1 * Smart Curtain Switch silver color1 * 3-button RF Remote1 * English or French or Germany or Spanish User Guide1 * terminal connect as a gift to wire the neutral lines1 * blue wire to install on curtain switch2 * Screws