USB Microphone (Microphone in ADC Digital Audio Input)(Black) Features: 1. Compliant with USB specification V2.0 full speed operation 2. Compliant with USB audio device class specification V1.0 3. Supports USB suspend resume mode 48KHZ recording sampling rate for Mic application in record only mode, sampling rate for 8KHz, 11.025KHz, 22.05KHz, 44.1KHz, and 48KHz are supported and 20dB microphone boost (default enabled) is declared as AGC for default USB audio driver control 4. Compatible with Win 2000 Win XP Win 7 and Mac OS X without additional driver Specification: 1. Directional Characteristic: Omni-Directional 2. Sensitivity Range: -58and1db at 1KHZ (0db=1Vuba)RL=2.2Kohm VCC=3.0V 3. Impedance: 2.2kohm and30 percent at 1khz (RL=2.2kohm) 4. Frequency response: AS Fig.3 5. SN Ratio: More than 58db 6. Max Input Sound Level: 115Db S.P.L 7. Operating voltage: 2.0V (1.1-10V) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.