Anker Soundcore Liberty Air 2 Ear buds with Qualcomm Aptx, Premium Call Quality, Premium Audio Clarity via Diamond-Inspired Drivers, 4 Microphones with Uplink Noise cancellation, HearD Personalized Sound, compatible with Wireless Charging, 7 hour Plavtime (28 Hours with Charging Case), Charge for 10 Minutes listen for 2 Hours, Fully Sweatproof.