http://www.tascam.eu/en/dr-70d.html -Compact, professional-grade audio recorder designed to be used in combination with a DSLR camera
-Uses an SD/SDHC/SDXC card as recording medium (up to 128 GB)
-High-quality recording inputs through Tascam original High Definition Discrete Architecture (HDDA) microphone preamps
-NE5532 operational amplifiers for even higher audio performance (also used on DA-3000)
-In addition to ordinary stereo recording, simultaneous recording of up to four channels is possible
-Four channels can be mixed down to a stereo signal
-Recording levels can be adjusted independently for inputs 1–4
-Dual recording function allows two files to be recorded simultaneously at different levels
-Recording at 44.1/48/96 kHz, 16/24-bit, linear PCM (WAV format)
-Broadcast Wave Format (BWF) supported as WAV recording format
-Two built-in omnidirectional microphones
-Four XLR/TRS combo inputs can provide phantom power (+24V/+48V)
-+24 dBu maximum input level (20 dB headroom)
-Additional unbalanced input for channels 1 and 2 (stereo mini jack) supports mics that require plug-in power, allowing the input of video mics and other high-output mics
-Switchable low-cut filter conveniently reduces low-frequency noise (40 Hz, 80 Hz, 120 Hz)
-Switchable limiter to prevent clipping
-High-quality audio can be output to a DSLR camera for recording
-Camera input enables convenient monitoring of audio from a DSLR camera
-Selectable mid-side decoding for use with MS microphone setups
-Slate tone functions (automatic/manual) to simplify synchronization of video files when editing
-Pre-recording function allows the unit to record the two seconds of sound before recording is activated
-Auto recording function to start start and stop recording by input level
-A new file can be created during recording (manually or by file size)
-Self-timer function to start recording after a set period of time
-Jump-back function allows the last several seconds of the currently played file to be replayed again by simply pressing a button
-Selectable delay to eliminate time lags caused by differences in the distances of two input sources
-QUICK button allows easy access to various functions
-Mark function convenient for moving to specific locations
-Equalizers for playback, and level alignment function to enhance the perceived overall sound pressure
-File name format can be set to use a user-defined word or the date
-Resume function to memorize the playback position before the unit is turned off
-Line output and headphones output with individual level controls (3.5-mm jack)
-Dedicated remote control jack for use with RC-10 and RC-3F (sold separately)
-Hold switch to prevent accidental operation
-Low-noise buttons
-128 x 64 pixel LC display with backlight
-USB 2.0 port
-Stand adapter (¼ inch) on bottom side to attach the unit to a tripod
-DSLR bracket for easy camera attachment and removal
-Hot shoe mount (accessible when not using the DSLR bracket)
-Handles on the front left and right sides protect the screen and can be used to attach a shoulder belt
-Operates on four AA batteries, an AC adapter (sold separately: TASCAM PS-P515U), external battery pack (sold separately: TASCAM BP-6AA) or USB bus power