Zoom H2N Handy Audio Recorder

Five built-in microphones and four recording modes: Mid-Side (MS) stereo, 90° X/Y stereo, and both 2-channel and 4-channel surround
Analog-type input gain control   
Auto Gain provides three preset recording levels
Stereo ⅛" Mic/Line In mini phone jack with Plug-in power (2.5V)
Stereo ⅛" Phone/Line Output jack with dedicated volume control
Built-in reference speaker for fast monitoring
Large 1.8 inch backlit LCD display 
Records directly to SD and SDHC cards up to 32 GB
Supports up to 24-bit/96 kHz audio in BWF-compliant WAV or a variety of MP3 formats
Auto-record and Pre-record features 
WAV to MP3 conversion
Internal mixdown: four-track surround to stereo  
Up to 99 marks per recording
Built-in effects, including compression/limiting and low-cut filtering 
Onboard MS decoding
Normalize and Divide functions
Chromatic tuner and metronome 
Loop playback with user-defined start and stop points
Variable playback speed, from 50% to 150% for phrase training
Variable pitch without affecting playback speed
USB port for data exchange to and from computer and use as a USB microphone
4-in/2-out USB audio interface for PC/Mac computers
SD card reader function
Data recovery function automatically saves data if power fails or card is removed
Mounts directly to tripod or DSLR 
Runs on only 2 standard AA alkaline or NiMH rechargeable batteries, or AC adapter (AD-17, USB to AC type) 
Over 20 hours of operation with 2 AA alkaline batteries 

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)