Free yourself from your desk with the perfect affordable Bluetooth wireless dual-ear (stereo) headset. Meet the Voyager 4320 UC. It's everything you need to stay connected to all your devices whether at home or in the office. Keep yourself productive with all day comfort and dual-mic Acoustic Fence technology that eliminates background noise. Connect your device to the computer via the BT700 USB-A adapter or via Bluetooth 5.2 to a mobile device. - Voyager 4320 UC Bluetooth wireless headset - Binaural - Connected to PC/Mac via USB-A Bluetooth adapter and a mobile device via Bluetooth - Up to 50 m range (with BT700 USB adapter) - Dual noise-cancelling microphone suppresses background noise - Up to 24 hours of wireless talk time - Comfortable and adjustable padded headband Please note: We recommend using Poly Lens software with this product. This enables central management of video devices, headsets, phones and webcams. Other benefits: - Custom device settings - Always the latest firmware - Easy troubleshooting tool - Fast device integration - Dashboard layout with intelligent news feed