JVC HA-ET90BT-B Earset - Stereo - Wireless - Bluetooth - 32.8 ft - 20 Hz - 20 kHz - Earbud - Binaural - BlackConnectivity Technology: WirelessWireless Technology: BluetoothWireless Operating Distance: 32.8 ftSound Mode: StereoMinimum Frequency Response: 20 HzMaximum Frequency Response: 20 kHzEarpiece Design: EarbudEarpiece Type: BinauralDriver Size: 0.32Color: Black"