Arozzi Sfera Pro . Type: Table microphone, Microphone sensitivity: 44 dB, Microphone frequency: 50 - 16000 Hz. Connectivity technology: Wired, Device interface: USB. Product colour: Black, Cable length: 1.8 m, Compatible operating systems: Windows Vista, XP Home Edition or XP Professional, Windows 7, Windows 8 and 8.1, Windows 10, Mac.... Total Harmonic Distortion (THD): 0.009%, Output impedance: 16 Ω, Line-out Signal-to-Noise Ratio (SNR): 114 dB. Power source: USB, Operating voltage: 5 V, Power consumption: 500 mA