MAIN OVERVIEW FEATURES: Connectivity Technology: WirelessWireless Technology: BluetoothWireless Operating Distance: 33 ftSound Mode: StereoMinimum Frequency Response: 200 HzMaximum Frequency Response: 20 kHzEarpiece Design: Over-the-headEarpiece Type: BinauralColor: BlackForm Factor: CircumauralHeight: 6.5"Width: 6"Depth: 2"Weight (Approximate): 4 ozPackage Contents: ABH04FB Bluetooth Wireless Stereo HeadphonesUSB Charging CableQuick Start GuideRegistration / Warranty CardLimited Warranty: 1 Year