• Bluetooth solution: HFP, HSP, A2DP, AVRCP
• Frequency range: 20Hz-20KHz
• Connection distance: 10m
• Speaker size: ?8mm
• Impedance range: 32 ?±5?
• Earbud battery capacity: 40mAh
• Charging case battery capacity: 275mAh
• Input: 5V == 0.5A
• Charging time: ~2h
• Playback time: ~2.5h (volume at 70%)
• Charging interface: Micro USB
• Net weight: ~21g
