48 kbps (*)

ICD-UX543/UX543F

Playback time: 178 h.

Number of files: 2,670 files

ICD-UX544F

Playback time: 357 h.

Number of files: 5,355 files

128 kbps (*)

ICD-UX543/UX543F

Playback time: 67 h. 5 m.

Number of files: 1,006 files

ICD-UX544F

Playback time: 134 h.

Number of files: 2,010 files

256 kbps (*)

ICD-UX543/UX543F

Playback time: 33 h. 30 m.

Number of files: 502 files

ICD-UX544F

Playback time: 67 h. 5 m.

Number of files: 1,006 files

(h.: hours/m.: minutes)

^* In the case where MP3 files of 4 minutes each are transferred to the IC recorder.