The Sony ICD-SX750 features 750 Hours of Maximum Recording Time, with 35 Hours of Maximum MP3 Recording Time, Noise Reduction Finish, Large built-in stereo microphones, Clear coating finish reduces hand noise during recording, PC Compatible--Computer compatibility using the supplied USB cable and Digital Voice Editor software, Includes Sound Forge Audio Sudio 9.0 L.E., Metal case protects your recorder from damage and is Ideal for: Music, language classes and podcasting