Bluetooth version: V5.0
 

 Communication distance: 10 meters
 

 Standby time: 30 days
 

 Talk time: 25 hours
 

 Listening time: 18 hours
 

 Battery capacity: 500mAh
 

 Charging time: about 2 hours
 

 Frequency response range: 20Hz-20KHz
 

 Applicable models: mobile devices with Bluetooth
 

 Basic functions: Bluetooth/wired/TF card/FM/hands-free calling


 Listening mode
 

 Short press function key: play or pause
 

 Next song: click volume + key
 

 Previous: click volume key
 

 Add volume: press volume + key for 2 seconds
 

 Volume reduction: press volume key for 2 seconds
 

 Switch mode: long press M key for 2 seconds
 

 Call mode
 

 Short press function key: answer or end
 

 Long press function key: Reject