Cut the cord! The Sonic Halo is a great way to de-clutter your digital life. Simply sync and wear: take your music (and calls!) with you when you walk, jog, garden or just want to leave your long cable headphones at home (the Halo's great for travel!). Lightweight and able to deliver superior sound, the Sonic Halo is packed with features:Never miss a call with the onboard microphone and vibrating call alertTalk or listen to music for up 25 hours on a single chargeRecharge the Sonic Halo via the included cableStore the earbuds in the Halo when not in use via magnetic tabsReceive an audible battery status alertManage the volume levels with onboard adjustment and microphone mute optionsExercise freely thanks to the sweat-proof and water-resistant earbudsBluetooth version 4.0 for your latest devicesCompatible with text-to-voice SMS apps