Infinity Foot Control For Sony Models M-2000 & M-2020 Heavy Duty IN25- Industrial Strength Infinity Series Foot Pedal. Compatible with Sony M2000 and Sony M2020. Exceeds Sony FS-25 and FS-80. NOTE: The SONY M2000 and M2020 microcassette transcribers were not designed with fast forward functionality using a foot pedal. The SONY M2000 and M2020 have a fast forward button on the transcriber unit but fast forward is not an option on both original SONY or our compatible foot pedals.