Headset Wireless Bluetooth Headset Retractable Computer Gaming Headset

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1. Frequency range: 20-20000Hz 2. Sensitivity: -90dB±3dB 3. Total harmonic distortion: 0.1% 4. Blue Teeth Version: V4.2+EDR 5. Output Power: 2.402-2.480GHZ 6. Charging interface: m ini USB charging hole 7. Battery Type: Lithium battery 8. Battery capacity: 230mAh 9. Charging time: 1-2 hours 10. Waiting time: 180 hours Show more