The TG 502/504 is an audio-tape recorder. The TG series tape recorders were very good. You could record and play sounds at home just like in a recording studio. They had no amplifier. So you could install them in hi-fi systems. Hi-fi is an abbreviation for: High Fidelity. Hi-fi is a standard for very good recordings.

The TG 502/504 tape recorder could be placed on the floor or put up on the wall.