Ring is a cloud control device. You put it on your finger, make a gesture and it will allow you to control many things without touching. This magical tool makes your life much easier and more enjoyable. Ring can not only control your smart phones but can also post on Evernote, Twitter, and Facebook. It's also compatible with other wearables such as Google glass, smart watch, etc. You can also play games and control home appliances (another device required) too. If your coffee machine will start when the power is turned on, you can control that too!