With its clear and simple operation concept, the DS-3500 ensures maximum efficiency and productivity. It has a 2" color TFT LCD with 60,000 colors and white LED backlight. Access to all main commands is cleverly positioned on the unit side to allow intuitive operation via push buttons. For conference recording it also provides additional audio codecs. With an external stereo microphone you can create stereo recordings in MP3 or PCM (WAV).