Controlling motorized blinds, curtains, and roller shutters can greatly improve privacy, energy efficiency, and home security. With Shelly Pro Dual Cover / Shutter PM, you can open, close and set the position of your curtains and roller shutters according to your own needs and preferences. You can schedule the curtains to open in the morning to let in natural light, and close when temperature inside the room reaches a high level, or when the weather forecast is warm, to regulate indoor temperature and improve efficiency.