Bluetooth version: V4.0

5 speakers 

aptX Bluetooth HD audio technology                              
6th gen CVC noise reduction                                
Pair two devices and take call from either
iSO displays headset power mater      

Bluetooth distance: 10 meters

Rechargeable battery capacity: 850mAh

Headset battery capacity: 45mAh

standby time: 300 hours

Music time: 7 hours

Talk time: 7 hours