Twin auto-reverse system: One transport both records and plays, the other is for playback only Cassette-shell stabilizers and large insulators for reduced acoustic modulation noisePitch control on deck A with microphone input with level controlComputer controlled recording calibration systemSilent mechanisms driven by exclusive motor actuatorsDolby® B/C noise reduction and Dolby® HX PRO (Deck B)Audio record input and playback output17 3/16" W x 5 1/2" H x 13 1/16" D