Recording formats

Recording format MP3 (MPEG-1 Audio Layer3) format

Sampling frequency

128 kbps 44.1 kHz
64 kbps mono 44.1 kHz
8 kbps mono 11.025 kHz

Maximum headphone output

Maximum headphone output ≦ 150 mV (conforms to EN 50332-2)


Built-in NAND flash memory 4GB


Type Built-in 20 mm diameter round dynamic speaker
Maximum working output 250 mW (8 Ω speaker)

Input / output

Microphone jack ⌀ 3.5 mm, impedance 2kΩ
Earphone jack ⌀ 3.5 mm, impedance 8Ω or more

Power supply / External dimensions / Weight / Operating temperature

Battery 2 AAA batteries
External dimensions 111.5mm x 39mm x 18mm
  • Excludes largest projections.
Weight 77g
  • Including batteries.
Operating temperature 0 to 42°℃

Frequency response

When recording via microphone jack 128 kbps: 40 Hz to 17 kHz
64 kbps mono: 40 Hz to 15 kHz
8 kbps mono: 40 Hz to 3.5 kHz
When recording with built-in microphone 70 Hz to 19 kHz
  • Frequency response upper limit is set by recording mode during MP3-format recording.
When playing back 30 Hz to 20 kHz
  • However, the upper and lower limits of the frequency characteristic depend on each recording format.

Battery duration (when using alkaline batteries)

Recording mode When recording with built-in microphone When playing back through built-in speaker When playing back through earphone
128 kbps Approx. 60 hrs. Approx. 15 hrs. Approx. 70 hrs.
64 kbps mono Approx. 69 hrs. Approx. 15 hrs. Approx. 73 hrs.
8 kbps mono Approx. 110 hrs. Approx. 24 hrs. Approx. 90 hrs.

Recording time

Recording mode Internal memory(4GB)
128 kbps Approx. 65 hrs.
64 kbps mono Approx. 131 hrs.
8 kbps mono Approx. 1040 hrs.

Maximum recording time per file

Recording mode
128 kbps Approx. 74 h. 30 min.
64 kbps mono Approx. 149 hrs.
8 kbps mono Approx. 1193 hrs.
  • Battery life was tested in accordance with the Olympus testing method. The values will significantly vary depending on the batteries used and operating conditions.
  • The possible recording time may be shorter than the above when repeated short recordings are made (use the possible recording time and elapsed recording time indications as a rough guide only).
  • The maximum size of one file is limited to approximately 4GB.
  • Specifications are subject to change without notice.