NEW FUNCTION You can set the switch operation time range 10-120 seconds on App, according to your shutter's height, if your shutter is high, so that you don't need to touch several times to complete open or close APP Name: Smart Life, TuyaIt's free App, Support IOS and AndroidTiming Function, APP remote control, Program 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. Voice Control Hands-free Voice Control Smart Blind Switch Compatible with Alexa, Google Home. With voice control to turn on and turn off the curtains. Indicate led light on the panel is off unless you touch on it The led light will be always off, except:1) You haven't connect WIFi , after you add the switch in App successfully, the led will be off2) Everytime you touch on the switch, the led will be on, it will last for 1 minute, afterwards it will be off Group Function and Device Sharing: You can create group in the APP to manage all the blinds in your house and share the device to all your family members. How to mount the switch on wall? Can Control Your Curtain anywhere outside home with 4G, 3G, 2G network Switch Size Compatible with some Israel junction box, US, Italia, Australia, box, the distance between the holes is 83.5mm to mount on wall User Manual with 8 pages detailed instruction for how to connect curtain switch, how to connect App. Specification Voltage: 100-250 VAC, 50/60HzMax Load: 600WMain Chip: REALTKE RTL8710BN InsideWireless Protocol: Wi-Fi 2.4Ghz (not support Wi-Fi 5Ghz Band)App Name: Tuya App or Smart LifeVoice Control: Amazon Alexa, Google AssistantSwitch Dimensions: 120mm*72mm*35mm