Tri-capsule array - 3 condenser capsules can record almost any situation;Power Required/Consumption: 5V 150mA， Frequency Response: 20Hz - 20kHz， Polar Patterns: Cardioid， Bidirectional， Omnidirectional， Stereo;Bit Rate: 16-bit， Capsules: 3 Blue-proprietary 14mm condenser capsules， Max SPL: 120dB (THD: 0.5% 1kHz);Headphone Amplifier: Impedance: 16 ohms， Frequency Response: 15 Hz - 22 kHz， Signal to Noise: 100dB;Plug 'n play: Mac OSX (10.4.11 or higher)， USB 1.1/2.0， 64 MB RAM (minimum)Windows: Windows Vista， 7， 8 (or newer)， USB 1.1/2.0 (or newer)， 64MB RAM (or better)