VOICE CONTROL & TOUCH BUTTON: Compatible with Echo Alexa and Google Home, you can open/close/pause the shutter by voice. You can create a routine in Alexa to pause the shutter by voice. PROGRAM SCHEDULES: From the "Smart life" application on your smartphone, you can manage the schedules. With the timer function, you can program the openings and closings at a specific time. CONTROL FROM ANYWHERE: The smart life & Tuya APP (free) in the phone or tablet helps to realize unlimited remote control, you can control the curtain from anywhere at home or away from home. LED OFF & GROUP CONTROL: The LED indicators of the buttons only light up when touched. No LED light to disturb you while sleeping. You can control up to 20 switches in a group and share them to your family with one click in the smartlife APP. Notice: The product is only compatible with the motor with 4 wires (2 output wires, 1 neutral wire and 1 ground wire). Smart Switch for Roller Shutter Compatible with Alexa and Goggle Home.