Instructions: In the XP system plug and play automatically shield the computer built-in sound card microphone (individual computer will not shield only need to manually switch once) The computer USB plug is suitable for any computer model with USB interface 360 ° omnidirectional full point anti-noise can be used for computer recording equipment Features: USB Microphone offers excellent sound quality with any plug-and-play enabled PC or Mac device Designed to filter out background noises for crisp clear audio Neck is adjustable to fit wherever it s needed | USB Cable Length: 3.5ft Plug : USB 2.0;Sensitivity : -67 dBV/pBar -47 dBV/Pascal +/-4dB USB -Mikrofon for PC and Mac Microphone USB pour PC ou Mac