Operation voltagev37 modelv8s input voltage v110 220v materialpolycarbonate typeearhook general usesports fitness gaming computer mobile phone cellphone functionbluetooth noise cancelling sports gaming volume control with microphone communicationbluetooth connectorsusb memory capacitynone speaker frequency response20 2000hz microphone impedancekohm8 microphone frequency response20 2000hz driver typemoving iron sound channel51 bluetooth versionv41 operati