The Kensington 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 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 | High-Quality Stereo Sound is provided through powerful 40mm drivers with deep base and a wide dynamic range to deliver an exceptional listening experience | Best-in-Class Comfort - designed to fit heads of all ages, the adjustable headband is padded, the flexible boom-style microphone can be rotated up to 270 degrees, and the foam ear pads are wrapped in a soft leatherette cover to provide hours of comfortable use | Single-Sided Monitoring Enabled -the ear cups swivel to enable teachers or call centre instructors to listen in and support | 6 Foot Cord is the ideal length for learning environments and strong enough to stand up to heavy use | Multi-Device Compatibility allows headphones to work with Windows, Mac and Chromebook devices | Safe Listening Limit sets the maximum output to 94db to protect ears from hearing loss associated with excessively loud noise | Noise-Cancelling Microphone uses passive resistance technology to filter out ambient noise for optimum speech clarity