Fangrui Product Details Spare Parts, And Easy To Install Fine Workmanship And Style 1.mic Input 1-2 (balanced): Frequency Response: -1/-1db, 20hz - 20khz Dynamic Range: 82 Db, A Weighting +n/: 0., 1khz Maximum Input Level: +6dbu Input Resistance: 10kq Gain Range: +3db- +60db 2.hi-z Input 1 (unbalanced): Maximum Input Level: +3.0dbv Gain Range: 0db 40db 3.line Input (unbalanced): Input Resistance: 10kq Gain Range: -10db 40db 4.main Output (impedance Balance): Frequency Response: -1/-1db, 20hz - 20khz Dynamic Range: 82 Db, A Weighting +n: 0., 1khz, Headphone Output Impedance: 16 Output Impedance: 1kq Input Resistance: 100kq Material: Metal Colour: As Shown Package Contents: 1 X Sound Card 1 X Data Cable Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.