Bluetooth v5.0? ( Dual Connectivity ) Next Generation PixArt Chipset For Lossless Connectivity? DIRAC HD Noise Cancellation Mic? Touch Operation With Media And Call Control On Earbuds Battery Capacity 700mAh ( Can Charge Earbuds 3 - 4 Times ) Charging? Time Upto 2 Hours Playback Time Upto 4 - 5 Hours Single Use? ( Total Backup Upto 20 Hours) Type C Fast Charging Input For Power Supply Ceramic Finish premium Earbuds Design SOUND BY AKG