BT600 USB-A / USB-C Adapter - High-fidelity Bluetooth USB Adapter

Wireless USB adapter enables an excellent communication and music experience when connecting your existing Plantronics Bluetooth headset or headphones to PC and Mac computers. It's small enough to keep in your computer for always-ready connectivity.
High-fidelity Bluetooth USB Adapter

POLY BT600 Bluetooth Adapter

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BT600 USB-A / USB-C Adapter - High-fidelity Bluetooth USB Adapter

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The headset was misplaced when travelling. Selling the BT600 dongle. Still works great when paired with my other Focus headset

Plantronics Poly BT600 USB Bluetooth adapter

POLY BT600 USB-A High-fidelity Bluetooth USB Adapter - A-Power Computer Ltd.