Bluei Booster Champ headset, the super-small speaker drivers fit inside your ears comfortably. Hook up your music Listen to FM radio or your favorite tracks in stereo when you plug into your compatible device. Tap into simplicity Switch easily between calls and music a single button answers or ends a call. Specifications Listen to music or FM radio in stereo sound Simple design with single answer/end key integrated remote and microphone. When you are listening to music from your smartphone, you can even pick calls while listening to music as these headset come with a built-in microphone. You can listen to music in peace even when you’re stuck in traffic. Switch on better sound Enjoy quality on-the-go audio combined with easy control of hands-free conversations.