Rechargeable Bluetooth Wireless NFC in-Ear Active Sport Recoil Exercise Headphones with Microphone, Hands Free Calling, for iPhone, iPad, Samsung, Nexus, HTC and More by SoundLogic XT Lightweight (&lt;1.0 oz) design comfortably hugs your head to stay in place then recoils for easy storage after use. Includes carrying pouch to keep your Recoil Headphones, charger and extra silicone earbuds all in one place. Built-in microphone for hands-free calling. Bluetooth wireless range of ~30 feet, NFC-enabled pairing for NFC devices (not required.) Up to 7 hours of talk/music time (based on usage) These will help get you through any intense workout on a daily basis. Compare to: Bose SoundTrue, Jaybird BlueBuds, Plantronics BackBeat Fit, Jabra Sport PLUS, Jabra Rox, Hussar and TaoTronics. The SoundLogic XT NFC Bluetooth Active Recoils are the Best Headphones under $50.