Hello, buddy!
<br />
<br />Specification:
<br />1. Driver: 11mm 
<br />2. Impedance: 32 OHM 
<br />3. Bluetooth version: Bluetooth V4.2 + EDR 
<br />4. Bluetooth use band: 2.4GHz 
<br />5. Power level: CLASS II 
<br />6. Output power: 30mW 
<br />7. Bluetooth distance: 10 meters barrier 
<br />8. Frequency response: 20-20000Hz 
<br />9. Operating voltage range: 3.7V-4.2V 
<br />10. Mitou sensitivity: -42dB
<br />11. With A2DP / AVRCP high quality stereo audio transmission and remote control protocol
<br />12. Powerful noise de-noising circuit (active noise reduction)
<br />13. Charging time about 1 hour (power indicator charging: red light, full power: red light off (blue light).)
<br />14. Product Size: Length 25MM. Width 15MM. High 35mm
<br />15.Working time : one for 2.5 hours, a pair for 2 hours
<br />16.Standby time : one for 60 hours, a pair for 50 hours
<br />17. The charging time is about 30 minutes
<br />18. Battery capacity : 55 mAh for left and right
<br />19. Charger box:500mAh,fast charging( can be charged into 100% in 1 hour)
<br />
<br />Package Included:
<br />2xmini Bluetooth Headphones(left and right earphones)
<br />1x Charging box
<br />1xUSB Charging Cable
<br />1xUser Manual
<br />
<br />See you next time!<p> <b><b><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-large.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-1-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-12-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-2-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-3-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-4-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-5-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-6-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-7-orgin.jpg" noproxy><img src="https://contestimg.wish.com/api/webimage/5afe3f648daf171e705186bc-10-orgin.jpg></b></b></p>