The St 3210 is a dual purpose desktop machine. In dictation mode all the operating functions are controlled using the ProMic 800 FX microphone (accessory). Transcription is facilitated with the accessory headsets and 536 foot control or 541 hand control. You can appreciate all the usual Grundig quality. The sensitivity of the microphone recording can be set at three different levels including conference record. The correction index is activated via the microphone. Dictation workstation with microphone, transcription station with foot control and headphone Conference records Adjustable play back speed (+/- 15%) Adjustable short rewind Warning beep with tape or missing cassette LiquidCrystal Display indicating dictation number and minutes Letter end markings, index function