Cyber Acoustics USB Stereo Headset and BoomMic - Great for Classroom Education and InternetCommunication (AC-850) USB STEREO HEADSET WITH UNIDIRECTIONAL NOISE CANCELING MIC: The noise canceling microphone is designed for reliable testing, speech, and other vocal use, in less than ideal environments. IN LINE VOLUME AND MUTE CONTROL: Conveniently located inline volume and mute control makes it easy to adjust what your are listening to on the fly. USB PLUG-N-PLAY: Designed to work with standard USB ports, perfect for newer and older computers and laptops. DURABLE DESIGN: These headsets are hardwearing and long lasting, with an adjustable headband, easy to clean soft leatherette ear cushions for ultra comfortable fit on most any head size. Designed for daily use in schools, classrooms, or all day at work. QUALITY GUARANTEED: Includes 1 year hassle-free warranty. Compatibility: Connects to PC's, Macs, Chromebooks, Microsoft Surface, and USB equipped tablets and laptops. Clear Audio: Large 30mm dynamic drivers produce excellent sound quality.