Plantronics .Audio 300 Microphone - 100 Hz to 8 kHz - Wired - 1.80 m - Noise Cancelling, Electret - Mini-phone. Speak your mind with precision during multiplayer gaming and Internet calls. The Plantronics .Audio 300 analogue microphone boasts noise-cancelling technology that cuts through background clamour and conveys PC gaming, talking, voice recording, and video conferencing with crystal clarity. The stable desktop base features an adjustable boom for perfect microphone placement. A convenient monitor mount offers rapid repositioning - just remove the boom from its base and snap it on your PC. The .Audio 300 is compatible with popular PC sound cards for plug-and-play ease. A convenient microphone mute switch puts you in full command of your audio.