Modela9 typeearbud general usesports fitness gaming computer mobile phone cellphone functiongaming volume control with microphone bluetooth noise cancelling sports communicationbluetooth connectorsusb memory capacitynone speaker sensitivitydb128 speaker frequency response20 2000hz microphone impedancekohm8 microphone frequency response20 2000hz driver typemoving iron sound channel21 bluetooth versionv40 operating rangem10m talk timehours5 standby time h