Model AirBuds 20 Weight 28g(charging case)/6.3g (earbuds) Color Carbon Black/Frost White/Lilac Purple Driver 13mm dynamic driver Frequency Response Range 20Hz~20KHz Bluetooth Version 5.4 Audio Codec SBC, AAC Battery Capacity 400mAh Music play time (single full charge) 6.5 hours(50% volume) Charging time 1h10mins (earbuds)/1h45mins(charging case) Charging Port Type-C Connection Range >10m Water Resistance IPX7 (earbuds)