Designed for wireless movement Work out without wires holding you back. A lightweight design makes these wireless sports headphones comfortable, secure and discreet to wear whether you're training or out and about. Hear your surroundings with open-type drivers Stay aware of your environment while working out. These headphones allow you to hear ambient sound along with your music, so you can still hear what's going on around you. Great for outdoor workouts and runs where you need to stay alert, or to hear surroundings while still enjoying your music. Sweat and splash-proof Yes to music, no to sweat. With an IPX4 rating, the headphones can handle sweat or splashes from rain when you're working out. Secure fit for active use Ergonomically designed for a secure and comfortable fit, the earbuds feature rubber dimples to grip your ear and stay in place. One button, hands-free With hands-free calling using Bluetooth, you can leave your phone where it is and take calls instantly thanks to a built-in microphone. Up to 8 hours of playback Get in a couple of trips to the gym without having to charge, thanks to up to 8 hours of playback from a single charge. NFC and BLUETOOTH connection Stream effortlessly with Bluetooth and NFC One-touch listening. Near Field Communication (NFC) technology makes complex set-up sequences a thing of the past. Simply touch selected NFC-enabled devices to the on-body N-mark for a quick, seamless connection, then start streaming content via Bluetooth. No NFC? No problem. You can still manually connect to Bluetooth using your device's settings menu.