Poly - Voyager 4320 UC Wireless Headset (Plantronics) - Headphones with Boom Mic - Connect to PC/Mac via USB-A Bluetooth Adapter, Cell Phone via Bluetooth - Works with Teams, Zoom & More.

CLEAR AUDIO QUALITY: Noise-canceling dual mic with Acoustic Fence technology in a flexible boom microphone blocks out background noise so callers hear only you; plus, pinch-to-mute button on mic boom lets you quickly silence your mic, while dynamic mute alert lets you know you're muted.
CONNECTIVITY & MOBILITY: Wirelessly connect to a computer and move freely throughout your home or office with a range of up to a 164 ft (50 m) with the included BT700 USB-C Bluetooth adapter, (or connect via USB-A using included USB-C to USB-A adapter) and/or connect to a mobile phone using Bluetooth 5.2.
LONG-LIFE BATTERY: Stay productive with up to 24-hours of wireless talk time on a single charge; plus, extend your Bluetooth headset's talk time even further by using as a wired headset with audio over USB cable mode. Simplify charging with a desktop charging stand.
COMFORTABLE: Over-the-head stereo headset with passive noise isolation, adjustable padded headband, and memory foam ear cushions let you easily multi-task and comfortably stay in the zone.
DESIGNED FOR HYBRID WORKING: Portable design and included travel pouch let you stay productive at home, in the office, or both, while a dedicated Microsoft Teams button provides instant access to the Teams app for easy collaboration and communication, plus integration with Zoom and other platforms.

What's in the box
1 x Voyager 4320 Bluetoothx headset certified for
1 x Microsoft Teams, USB-C
1 x BT700 Bluetooth adapter, carrying case, USB-C to USB-A adapter, and charging cable.