iMic / USB Audio Interface. Use your USB port to add stereo audio input and output to your Mac or PC. iMic isolates the audio signal from the noisy electronics of your computer to give you higher quality sound. Perfect for transferring your vinyl to digital. A must for any audio enthusiast. Record Vinyl LP's and cassettes for digital use. USB Powered Provides Line level output for connecting powered speakers. Supports both Mic and Line level input.