The 3 Day Blinds App and USB Hub bring even more customization to your home's window treatments. The USB Hub is required to have your phone and shades work together. The 3 Day Blinds App allows you to control your shades, even when you’re on the go. Set Scenes and automatic Timers for even more convenience. You can also control your shades with your voice using Amazon Alexa, Google Home and Siri. The 3 Day Blinds app is available on both the Apple App Store and Google Play.