Product parameters: 

1 .Product Type: Bluetooth Headset 

2. wearing method: head-mounted 

3 .functions Use: Wireless headphones, voice headphones 

4. frequency range: 20-20000Hz 

5. Sensitivity: -90dB±3dB 

6 .total harmonic distortion: 0.1%

 7. Blue Teeth Version: V4.2+EDR

 8. output power: 2.402-2.480GHZ

 9. charging interface: mini USB charging hole 

10. battery type: lithium battery 

11. battery capacity: 230mAh 

12. charging time: 1-2 hours 13 hours: 10 hours 

14 music playing time: 7 hours 

15. waiting time: 180 hours 

16. Other features: Support status indicator, charging indicator display

Product Features: 

Volume +/-, up/down song switching, answering calls Play/pause, support 3.5mm audio interface, 3.5 plug audio cable directly connected to the headset to enjoy high-quality music playback without good power, good noise reduction function, all functions are available. The bluetooth earphone is made of rubber oil, the design is designed to be smooth and full of atmosphere; the full-size protein skin comfort earmuffs are comfortable to wear; the sealed earmuffs design effectively blocks the outside noise; the foldable design and the head-mounted size are adjustable. High applicability; built-in high quality 4.2 Bluetooth music chip, super cool music enjoyment. It is a must-have Bluetooth headset for travel.