Super bass comfortable wear wireless smart sports headset, with air noise insulation to effectively counter the noise of wind and CVC-6.0 intelligent noise reduction, APT-X free your workout with inspiring and wireless sound, NFC speed pairing, , sweat-proof and anti-splash proof sport Bluetooth earphone with enhanced bass Built-in microphone for hands-free calling Up to 6, play time of 8hrs, standby of 175 hrs, charging time of 1-2hrs, built in battery of 90mAh charging voltage of DC5V, more faster and secure connectivity with version 4.1v, supports all profile like HSP, HFP, A2DP, AVRCP, APT-X, IOS power display, frequency range of 2.402G-2.480G, transmission distance of 10m. boasting an IPX5 level. This headset is built to work with you at your sweatiest time.