Blue Microphones Yeti USB Microphone - Silver Edition Microphone Frequency Response: 20Hz-20KHz Specification: Microphone and Performance: Power Required / Consumption: 5V 150mA Sample Rate: 48 kHz Bit Rate: 16 bit Capsules: 3 Blue-proprietary 14 mm condenser capsules Polar Patterns: Cardioids, Bidirectional, Omnidirectional, Stereo Frequency Response: 20Hz-20kHz Max SPL: 120dB (THD: 0.5% 1kHz) Headphone Amplifier: Impedance: 16 ohms Power Output (RMS): 130 mWatts THD: 0.009% Frequency Response: 15Hz-22kHz Signal to Noise: 100dB System Requirements: Windows Windows 8 (Including 8.1), Windows 7, Windows Vista, XP Home Edition or XP Professional USB 1.1 / 2.0 64 MB RAM (minimum) Macintosh Mac OSX (10.4.11 or higher) USB 1.1 / 2.0 64 MB RAM (minimum)