The Cisco Headset 500 Series is a professional range of wired and wireless headsets optimized for Cisco IP phones and soft clients.&lt;br /&gt;&lt;br /&gt;These headsets are designed for workers in open work spaces so they can be more productive. They feature vibrant audio powerful noise isolation and exceptional comfort.&lt;br /&gt;&lt;br /&gt;The Cisco Headset 500 Series delivers surprisingly vibrant sound for open workspaces. Users can stay focused in noisy environments with rich sound exceptional comfort and proven reliability. The 500 Series offers a lightweight form factor that is comfortable to wear even for an entire workday. Its designed for workers who spend a lot of time wearing headsets for voice communications and listening to music.