Operation voltagev5 modelnx 8252 input voltage v5 materialpolycarbonate typeheadband general usesports fitness gaming computer mobile phone cellphone functionbluetooth noise cancelling sports gaming volume control communicationbluetooth connectorsusb memory capacitynone speaker sensitivitydb 583 driver typemoving coil sound channel21 bluetooth versionv30 frequency20 20000 transmitting power30 operating rangem10 talk timehours12 standby time hours