POLY Cuffie Voyager 4320 USB-A + dongle BT700

Audio Quality: Callers hear you - not your surroundings, with a noise-canceling dual mic with Acoustic Fence technology to block out background noise in a flexible microphone boom Connectivity and Mobility: Connect to a computer via BT700 Bluetooth adapter or mobile via Bluetooth 5.2. Move around freely with up to 50 m/164 ft of Bluetooth wireless range (with included BT700 USB Adapter) Versatility: Use wireless with the included Bluetooth adapter or as a wired headset with audio over USB cable mode Wearing Style: Stereo headset with passive noise isolation designed to keep you in the zone. Enjoy all day wearing thanks to a comfortable and adjustable padded headband Ideal for: The hybrid worker needing an affordable solution to connect at home and in the office