The app is called Light Sypher. You can pair your headphones with your phone and control more setting than on the headphones. You can find the headphones with the GPS or vibration. You can set themes for the colours, or the screen. The app is easy to use and can easily be paired. The app has translators for the headphones so if someone speaks the language you set and don't know, it will speak to you what the person is saying. There have multiple languages so you can understand a lot. There are sports you can use the headphones to track it with and the app can show you your stats. There lots of sports you can do like skiing and swimming. You can put helmets on even with the headphones because they are small and can fit well. The headphones can be used find your phone to, if you loose it. The app is very simple to use and is very useful.