OPPO ENCO W31 Lite (W11)

Driver :8mm dynamic driver Driver sensitity: 99dB KHz Frequency response range: 20Hz – 20KHz ; Wireless Range:10M Battery: 40mAh(headphones), 400mAh (charging case) ; Music play time(50%volume): 5h (single charge) ,20h(with charging case) Charging:120min (earphone) ,120min(earphone+charging case) Weight(approx):4.4g/earphone,35.5/g charing case,44.3/g headphone Water resistance(headphones):IP55 In the Box OPPO ENCO W31 Lite*1 Wireless Charging Case*1 Type-C Charging Cable*1 Quick Guide Book (chinese)*1