The Addasound ADD-CRYSTAL-SR2822 is a binaural USB headset with a directional noise-canceling microphone and an optimally designed sound chamber for clear audio. It features wideband audio processing for high-definition voice quality and is compatible with Microsoft Windows 8, Windows 7, Vista, Windows XP, Windows 2000, and Mac OS X. The headset includes a horizontally adjustable ear cap, a bendable microphone boom, protein ear cushions, and a lightweight build for comfort. Plug-and-play functionality offers mute, volume up, and volume down controls.