Features:16 bit 48/44.1 KHz digital quality sound input. Embedded A/D convert with audio signal boost. High quality professional shielded cable and 6.3mm(semidiameter) jack or XLR plug Red indicator light flash indicating when signal is being transmitted. Compatible with MacOSX， Windows 98/SE/2000/XP/Vista/Win7. Simple USB plug and play connection without addtional driver. Specification:Resolution: 16bit 48/44.1 KHz THD+N(-3dBr): -76dB S/N Ratio: 83dB Dynamic Range: 80dB Input Impedance: 1 M Ohm Frequency Response at 48KHz: 20-19 KHz Signal Input Range: 0-2.8Vpp Signal Boost Gain: +20dB Cable length: 3mPackage included:1 x Guitar Bass To USB Link Connection Cable 3M