iKross NFC-enabled Bluetooth Sweat-Proof Stereo Handsfree Headset with Mic for Workout, Sports, Gym One-touch Bluetooth pairing with Near Field Communications (NFC). Microphone for hands free talking. On ear controls let you manage calls, play, pause, next, previous, and volume all from the headset. Clear, rich stereo music streamed wirelessly. Up to 5 hours of talk time or music steamiing and 150 hours of standby time.