The Cisco 522 Wired Dual Headset with 3.5mm Connector and USB Adapter delivers surprisingly vibrant sound for open workspaces. Users can stay focused in noisy environments with rich sound, exceptional comfort, and proven reliability. The 522 offers a lightweight form factor that is comfortable to wear, even for an entire workday. It’s designed for workers who spend a lot of time wearing headsets for voice communications and listening to music. Plus, its hand-held controller connects 3.5-mm headset to USB and provides easy access to key call control capabilities, including answer, end call, hold/resume (for multiple calls), mute, volume up, and volume down.