Features: Plug and Play Noise Canceling on / Off Led Indicator Detacheble USB A-B Cable 16 Inch Adjustable Neck 10 FT. USB Cord Stable weighted base with non-skid rubber mounts Specifications: Element: Fixed-charged back plate, permanently polarized condenser Polar Pattern: Hypercardioid Sensitivity: -40 +/- 2db (0dB=1V/Pa at 1KHz Frequency Response: 40 Hz - 16 KHz Output Impedance: 75-Ohm +/-30 % Max Input S.P.L.: 138dB Signal/Noise Ratio: 665dB Output Connector: USB A-B Power Supply: Phantom Power 3V DC Applications PC recording software Voice recognition Internet chat Hands free dictation