Curtain Percentage Control: Accurately control roller shutter at specify percentage position via App. App Remote Control: Mobile app remote control to open or close curtain. Physics Push Button Control: You can manually control the curtains to open, pause or close with buttons. Timer programming: You can set a timer to open or close the curtains at a specified time. Personalize Scene : With Smart Life scene, you can flexibly set your curtain status according to sunrise, sunset or weather conditions.