Micro digital voice recorders - EM Digital voice recorders - Ultra thin digital voice recorder
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EM Digital Voice Recorder - Model A37

Very small size micro digital voice recorder with Voice Activation System (VAS)

micro digital voice recorder case A37


Ultrathin! Just 7-mm thick!

Available models: A37-300h, A37-600h, A37-1200h (the last figures in the model name show the maximum record time in hours when sampling rate is 8 KHz and compression is 2bits ADPCM).
The recorder is produced in black or silver-coloured rectangular case..

The ultrathin DVR is powered by a 180 mA/h Li-Pol rechargeable battery and can be turned on with slight pressing the membrane button, placed on the recorder's case. You can also use the recorder as a key trinket. The recorder can be connected to PC via USB port with the supplied cable.

This ultrathin Micro Digital Voice Recorder has a high-sensitive built-in microphone (range up to 10 m) and can be used in any type of environment.

The supplied software makes it possible:

  • to save the recorded messages as standard sound files;
  • to set the recorder parameters;
  • to use the recorder as a flash-disc of 2-8 GB, as well as to store and transfer files;
  • to update the recorder firmware.

Our product differs from other gadgets that are available on the market by:

  • High quality recording.
  •  Low power consumption.
  • Built-in USB interface (exchange speed up to 0.7 Mb/sec).
  • High sensitivity microphone.
  • Wide frequency band.  
  • Simplified functionalities (recording only, the recorder does not have a headphones connector, to play the recordings back you need a computer).
  • A one control button.
  • A recorder's LED which indicates recorder's operating modes.
  • Long recording duration (from 300 to 1,200 hours depending on memory capacity).
  • Voice Activation System (which effectively compresses pauses in messages, therefore increasing the actual record time. Using this system saves memory during pauses, but the time intervals remain. When downloading records to PC, the pause length can be either restored, as silence, or passed, depending on the settings made).
  • Timer to turn recording on.
  • Digital signature of recordings.


  • Height: 51 mm
  • Width: 27 mm
  • Thickness: 7 mm
  • Weight: 10 g
  • Case: Metal
  • Record time: 300h, 600h, 1200h
  • Battery life in record mode: 40h
  • Power supply: Battery
  • Battery life in VAS mode: 250h
  • Battery life in stand-by mode: 8 months
  • Built-in flash memory: 2 Gb, 8 Gb
  • Interface USB: 1.1 Audio recording format Mono
  • Frequency band: 100 Hz to 10 kHz
  • Dynamic range: - 72 Db
  • Sample rate: 5, 6.6, 8, 10, 13.3, 20
  • Voice Activating System: YES
  • Timer recording: YES

  • Voice Recorder
  • USB cable
  • Software CD
  • Instructions


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