Rock Music Wireless Headphones RM-WH333
Bluetooth version : 5.0
Driver size : p40mm
Frequency Response : 20Hz-18KHz
Playback time :10~12hours
Charge time : 2hours
Battery: 3.7v 400mAh
It comes with dual connectivity, wireless via its bluetooth and wired with its aux port.
Since the earphone has sound insulation effect, do not use the ear Phone while driving in the car or riding bike or other Transportation means in case of traffic accident.