Panasonic SJ-MR240

Source: MiniDisc Wiki contributors · September 3, 2026 snapshot · CC BY 4.0, except where otherwise credited.

Attribution and changes

Adapted from “Panasonic SJ-MR240”. Links, layout and file names normalized; missing database fields restored; remote embeds replaced with links. Manufacturer manuals and separately credited photographs retain their original attribution.

Name	SJ-MR240
Manufacturer	Panasonic
Released	2004/02
Device type	portable
Recorder	Recorder
MDLP	Yes
NetMD	No
Hi-MD	No
Radio	No
Dimensions	77.8x71.9x13.9mm
Weight	85g (112g w/batt)
ATRAC ver	Not recorded
Battery	Not recorded "Gumstick"
Battery notes	Not recorded
Sidecar (depr)	Not recorded
Voltage	1.2, 1.5, 5
Power cable	Not recorded
Price (launch)	Not recorded
Price (launch)	¥34 000
-
Inputs	3.5mm line in (optical multi), 3.5mm microphone
Outputs	3.5mm headphone
Control	Not recorded

The MR240 was initially released in three colors, silver (SJ-MR240-S), blue (SJ-MR240-A), and red (SJ-MR240-R). Then and Later Orange. A SJ-MR240DX variant existed. The pricing was "open" but with an expected street price of 34,000 yen.

Features:

130 hour battery life
Large style 3-Line LCD on main body displays 2 lines of Kanji/Hiragana.
Kanji displaying LCD remote with ability to control recording.
Jog dial.
Stereo mic included.
X-Bass.
Docking cradle.
Differences from SJ-MR270:
- Non-NetMD
- No H.D.E.S
- No one-track recording

Specs: Headphone amp: 2.8mW+2.8mW, JEITA, 20-20kHz +0/-6dB. Line in: 33Kohm, Mic in: 600 ohm, Headphone out: 50 ohm

Note that the 3.5mm headphone jack is on the remote. The remote port on the unit itself is not 3.5mm so the remote or a converter is necessary to use 3.5mm headphones.

Content adapted from: Minidisc.org page av.watch Panasonic Product Page Panasonic Product Page (MiniDisc Wiki mirror)