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Features: High Sound Quality: USB telephone headset with wide-band speaker ensures HD audio sound for natural hearing. The noise-canceling microphone can greatly reduce unwanted background noise for clear conversation. User-Friendly Design: Lightweight design and adjustable headband make sure this headset fits for different head sizes. Soft over-the-ear protein earmuffs bring you incredible comfort wear experience. Easy Access Control: Plug and play computer headset with convenient inline Volume Switch and Mic Mute for easy access. Multi-Purpose: Computer Headset is perfect for Skype Chat, Call Center, Office, Business, Conference Calls, Nuance Dragon NaturallySpeaking, Dictation, Rosetta Stone, Online Courses, Webinars, YouTube Recording, Podcast and more. Wide Compatibility: USB and 3.5mm connectivity options let you work on a variety of devices. Compatible with for Windows 2000/7/8/10/XP/Vista, Mac OS X, iOS, Android, Tablet PC. Specification: Type: USB Headset Horn Diameter: 30MM Frequency Response Range: 20 - 20000Hz Sensitivity: 105dB Impedance: 32Ω Audio Plug: USB plug Package Included: 1 × USB Headset