WiWU O200OpenBuds Wireless Bluetooth Headset Model: O200Color: Black, WhiteChips: JL6973D4OpenBudsBluetooth: V5.3Battery: 500mAh, 55mAh for earbudType C charging port, Charging time 1.5hWorking Time: 10H+, total 30H with charging caseFeatures: Ergonomic design, comfortable design