HAVIT F9 Ultra-comfortable frosted Wireless headphone - Havit
HAVIT® F9 ব্লুটুথ হেডফোন
Specification：
Bluetooth Version：V4.1
Wireless working range: 10M (without obstacles )
Charging means:micro USB
Speaker: Φ40*19*32Ω
Speaker sensitivity: 112±3dB at 1KHz;1mW
Speaker frequency: 20-20KHz
Rated power: 8mW-12mW
Input voltage: DC 5V
Battery: Rechargeable 3.7V 300mAH Li-polymer battery
Play time: Up to 11H
Talk time: Up to 10H
Charging time: About 2H
Standby time: Up to 200H
Voice chat:supported
Voice prompt:supported
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