100% brand new and high quality.
Specifications:
Material: Metal
Size: app. 140x110x25mm / 5.51x4.33x0.98inch
Color: As pictures shown
Quantity: 1Pc
Compatible with Mac OS (Intel-Mac) and Windows XP, Vista (32-bit/64-bit), Windows 7 (32-bit/64-bit) & Windows 8 (32-bit/64-bit)

Mic Input
Frequency Response ： 22Hz to 22kHz (+/-0.2dB)
Dynamic Range ：95dB, A-weighted
Signal-to-Noise Ratio ： -95dB, A-weighted
THD+N ：Crosstalk ： -85dB @ 1kHz
Input Impedance Mic in : 1.8K Ohms, typical
Total Gain Range ：+39dB

Inst Input
Frequency Response ：22Hz to 20kHz (+/-0.2dB)
Dynamic Range： 95dB, A-weighted
Signal-to-Noise Ratio ：-95dB, A-weighted
THD+N ：Crosstalk ：-85dB @ 1kHz
Input Impedance Inst in : 500K Ohms, typical
Total Gain Range ： +38dB

Line Inputs (RCA IN, Unbalanced)
Frequency Response ：22Hz to 20kHz (+/-0.2dB)
Dynamic Range： 95dB, A-weighted
Signal-to-Noise Ratio： -95dB, A-weighted
THD+N ：Crosstalk ：-90dB @ 1kHz
Input Impedance ：10K Ohms, typical
Adjustable Gain ：+8dB

Line Outputs 1/2 (Stereo, Unbalanced)
Frequency Response ： 22Hz to 20kHz (+/-0.2dB)
Dynamic Range ：95dB, A-weighted
Signal-to-Noise Ratio ： -95dB, A-weighted
THD+N ： Crosstalk ：-90dB @ 1kHz
Nominal Output Level Unbalanced : +2dBV, typical

Headphone Outputs (at Maximum Volume; Into 100 Ohm load)
Frequency Response ：22Hz to 20kHz (+/-0.2dB)
Power into Ohms ：20 mW into 100 Ohms
THD+N ： Signal-to-Noise Ratio ：-95dB, A-weighted
Max Output Level into ：100 Ohms +2.0dBV, typical
Load Impedance ：32 to 600 Ohms