Havit F9 Wireless Headphone
- Bluetooth Version：V4.1
- Wireless working range: 10M (without obstacles )
- Charging means: Micro USB
- Speaker sensitivity: 112±3dB at 1KHz;1mW
- Battery: Rechargeable 3.7V 300mAH Li-polymer battery
- Playtime: Up to 11H
- Talk time: Up to 10H
- Charging time: About 2H
- Speaker frequency: 20-20KHz
- Rated power: 8mW-12mW
- Input voltage: DC 5V
- Standby time: Up to 200H
- Voice chat: Supported
- Voice prompt:supported
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