Weight 61.3g(charging case) / 9.8g*2 (earbuds) Driver 16.2mm Dynamic Driver Frequency response range 20HZ ~20KHZ Audio codec SBC,ACC Battery capacity 550mAh Music play time (single full charge) 35.75hrs(50% volume) Charging time 1.4hrs (earbuds) / 1.5hrs(charging case) Charging port Type-C Water resistance IP68 & IP69