Operation voltagev5 modelq9 input voltage v5 cable lengthcm30 materialwooden plastic typein ear general usesports fitness mobile phone cellphone functionbluetooth noise cancelling sports with microphone communicationbluetooth connectorsusb memory capacitynone driver typeelectrostatic sound channel10 bluetooth versionv41 operating rangem6 10m talk timehours5 standby time hours120 listing date05122017 production modeexternal procurement headse