Tuya Smart Life WiFi Blind Curtain Switch RF Remote For Electric Rolling Shutter APP Remote Control Work With Alexa Google Home ParameterWIFI Curtain Module:--Input Voltage: AC 110V~240V--Size:40*40*15mm--RF Frequency: 433MHz--WIFI: IEEE 802.11 b/g/n--Max current: 10Amp--Color: White (Outside Shell)--Electric wire:IncludeWirele Remote Rontrol:--Size:110*38.1*15mm--Remote distance : up to 70 meters (theoretical distance)--Battery : 23A 12V( NO Battery include )--Screw: Include--Base: Include Two simple wiring methods:1:No original electric curtain wall switch wiring method: 2:Having original electric curtain wall switch wiring method: Features:1:70Meters Long Range Wirele Control:--No need mobile phone control, Realize 70 meters long-distance control of curtains or electric projection cloth to open or close.2:Tuya Smart phone APP Remote Control:--Enable to remotely control your connected appliances on your smart phone wherever you are. WIFI Networks provides the needed connection to the DIY Switch Module without the need of a separate HUB.(Compatible with Android&iOS.)3:Intelligently control the magnitude of curtain closing.--Without looking at the curtains, you can control the degree of closing or opening at will, and directly use the mobile phone to control the curtains to open half or one-third of the way.4. Voice Control:--Compatible with Alexa and Google Home for easy voice control,providing your smart life for controlling roller blinds with much more convenience.5.Timer and Countdown Control:--Take full control of your roller blinds intelligently with the timer feature on your App,which enables to open / close them at a specific time automatically. Automate your home roller blinds via 3 timing types:schedules timing,countdown timing and loop timing. How to program1.pre the learning button once2.pre the remote control button onceHow to reset2.pre the remote control button 8 times,succeed. *If you do not understand clearly. Please send us a meage to let us know. We will do our best to service each of our customers. Enjoy your shopping!