BT Version: 5.3 Receive Sensitivity: 20Hz-2483.5MHZ Horn Power: 3mW Frequency Response: 20Hz-20KHz Speaker Type: 中10mm@16ohm Earbud Capacity: 5V/35mAh Case Capacity:350maH/1.29Wh Charging Time: 1 Hour Earbud Use Time: About 4 Hours Charging Case Use Time: About 20 Hours Colour: Black
