Models6 materialpolycarbonate typein ear general usesports fitness gaming computer mobile phone cellphone functionbluetooth noise cancelling sports gaming volume control with microphone communicationbluetooth connectorsusb memory capacitynone driver typemoving coil sound channel21 bluetooth versionv41 frequency2401 2480 operating rangem10 talk timehours10 standby time hours120 brandsoyto listing date06092017 production modeexternal procurement he