The names "Poly Voyager Focus 2" and "Poly Voyager Focus 2 UC" basically refer to the same headset model, with "UC" standing for "Unified Communications" and emphasising compatibility with various collaboration platforms such as Microsoft Teams, Zoom and Cisco. The "UC" version is specially optimised and certified for use with these platforms. The devices are technically and functionally identical, the difference lies primarily in the certification and the focus on specific communication environments.