Hear with Complete Clarity via USB The Kensington USB Hi-Fi Headphones with Microphone is a durable headset that provides high-quality stereo sound, a microphone designed to support voice clarity, and best-in-class comfort features. Supporting common core learning standards, the headphones provide a max output of 94db for safe listening and the mic supports the latest audio-based classroom testing requirements. The Hi-Fi USB Headphones with Microphone is suitable for students, call centers, business professionals, and recreational gamers. Compatible with Windows, Mac and Chromebook for a simple plug and play experience. Features & Benefits High-quality stereo sound is provided through powerful 40mm drivers with deep bass and a wide dynamic range Best-in-Class comfort Ear cups swivel to enable teachers or call center instructors to listen in and support. Noise-cancelling microphone included Multi-Device Compatibility - works with Windows, Mac and Chromebook devices. Maximum output is 94db for safe listening