Over-the-head. Designed for telephone-intensive users, including formal customer care centers, help desks, telesales, and customer service organizations. Advanced noise-canceling microphone. Tactile and visual guidance mean the user can feel and hear ratchet clicks when the boom is moved into the proper range. Unibody flexible boom and laser welding ensure maximum robustness. QuickDisconnect feature provides walk away convenience. Soft, luxurious ear cushions for all-day comfort. Sold by each. Black.