GENERAL

Recording media:

16MB–2GB SD cards, 4GB–32GB SDHC cards
Built-in memory:
Up to 1 minute in 96kbps MP3 format 
(Recording overwrites any previous recording in memory)
Mic arrangements:
90˚ X/Y stereo, MS stereo with adjustable side mic level
Recording modes:
MS, XY, MS+XY (2ch), MS+XY (4ch)
Microphone types:
Directional (XY, MS mid mics)
Bidirectional (MS side mic)
Maximum sound pressure input:
120 dB spl (directional)
122 dB spl (bi-directional)
FILE FORMATS
Stereo uncompressed PCM:
44.1 / 48 / 96kHz, 16 / 24bit WAV (BWF)
Compressed MP3 (recording):
44.1kHz, 48kHz
56 /64/80/96/112/128/160/192/ 224/256/320kbps
(Not compatible with MS-RAW recording)
Compressed MP3 (playback):
44.1kHz, 48kHz 
32/40/48/56/64/80/96/112/128/160/192/224/256/320kbps
4ch uncompressed PCM:
44.1 / 48 / 96kHz, 16 / 24bit WAV (BWF)
(Two stereo files for each recording)
DIGITAL PROCESSING
A/D conversion:
24-bit 128× oversampling
D/A conversion:
24-bit 128× oversampling
Signal processing:
32-bit
Recording time (2GB card):
3:08:00 (44.1kHz/16bit WAV), 34:43:00 (128kbps MP3)
ADDITIONAL FEATURES
Lo cut:
80Hz high-pass filter
Comp/Limiter:
3 types of compressors and 3 types of limiters
Auto gain:
Automatic input gain adjustment (3 levels)
Pre rec:
2 seconds of pre-recording
Auto rec:
Automatic recording start/stop, continuous standby
Tuner:
Chromatic, guitar, bass and alternate (A/E/G/D/DADGAD) tunings with automatic string detection
Metronome:
40–250 BPM range, five tones, pre-count
Speed:
Playback speed adjustable between 50–150%
Key control:
Playback pitch adjustable ±6 semitones 
(Cannot be used with 96kHz files)
AB repeat:
Repeats playback between selected points in a file
File divide:
Divides a file into two
File normalize:
Maximizes file volume 
(Cannot be used with MP3s)
File MP3 encode:
Converts WAV files to MP3 formats at fixed bit rates
Mark:
Up to 99 marks 
(WAV files only)
Surround mixer:
Adjusts mix balance when playing back 4ch surround recordings
OTHER
Display graphic:
128×64 pixels backlit LCD
Input gain:
0 to +39 dB
Input jack:
Line/mic stereo mini jack with plug-in power
2 kΩ impedance at input levels of 0 to –39 dBm
Output jack:
Line/headphone stereo mini jack
Rated output level:
−10 dBm (output impedance 10 kΩ or more)
Headphones:
20 mW + 20 mW (into 32 Ω load)
Built-in speaker:
400mW, 8Ω, mono
USB:
Mini-B type
Card reader operation
USB 2.0 high speed:
Audio interface operation
USB 1.0 full speed:
Supports 44.1 / 48kHz sampling rates and 16-bit rate
USB bus power operation supported
Power:
Two AA batteries, AD-17 USB to AC adapter (DC 5V 1A) 
Continuous operation of 20 or more hours when recording 44.1kHz/16-bit WAV files using alkaline batteries
Physical features:
Tripod mounting socket, strap attachment
Dimensions:
67.6mm (W) × 113.85mm (H) × 42.7mm (D)
Weight:
130 g (without batteries)