Cruise Series UINB-4878 The unique design ensures a snug fit for comfort. Built to stay in place during movement and outdoor activities. It has a magnet attraction. wireless, compact, and light-weight. Attached simple playback control. Take incoming calls with just a click of a button. Built-in Microphone. Headset battery meter display on IOS devices. Connect to 2 devices at the same time. Along with access to Siri and Android voice assistance, you'll never need to reach for your smartphone. Get this best product and enjoy the best flavor of music.