I often bought microphones with four polar patterns: single-directional, omnidirectional, bidirectional, and stereo, but I'm selling this one because I bought a new microphone. It can be used immediately as it connects directly via USB without an audio interface. I also own USB microphones in the same price range, but I felt the sound quality was better with this one. It's a multi-functional condenser microphone with adjustable volume and pattern. - Brand: M-AUDIO - Model Name: UBER MIC - Features: Volume adjustment, mute, pattern switching, microphone gain adjustment ■ Uber Mic Technical Specifications Type: 3-capsule condenser USB microphone Capsule Size: 16 mm Polar Patterns: Figure 8, Cardioid, Omni, Stereo Frequency Response: 30 Hz - 20 kHz Sensitivity: -45 dB (0 dB=1 V/Pa @ 1 kHz) SNR: 110 dB Max SPL: 120 dB (THD < 1%, 1 kHz) Headphone Output Impedance: 10Ω Headphone Output Power: 30 mW (@ 48Ω) Headphone Output THD: 0.03% Headphone Output Frequency Response: 20 Hz - 20 kHz Headphone Output SNR: 110 dB Connectors: 3.5 mm TRS/Stereo Headphone Output x1, Mini USB x1, -27 mounting point x1 Power: Via Mini USB Size: 11.4 x 27.4 cm (Diameter x Height: with stand) Weight: 1.8 kg (Microphone & Stand), 0.7 kg (Microphone), 1.0 kg (Stand) M-Audio Professional USB Condenser Microphone with 4 Polar Patterns [Cardioid, Bidirectional, Omnidirectional, Stereo] with Headphone Output UBER M Brand: M-AUDIO Thank you for viewing.