POLY Voyager 4320 UC Stereo USB-A Headset +BT700 USB-A Adapter +Charging Stand

POLY Voyager 4320 UC Stereo USB-A Headset +BT700 USB-A Adapter +Charging Stand. Product type: Headset. Connectivity technology: Wireless, Bluetooth. Recommended usage: Calls/Music. Headphone frequency: 20 - 20000 Hz. Cable length: 1.5 m. Weight: 162 g. Product colour: Black