Keyring with Integrated Digital Audio Recorder

MSRP Starting Price: R 9,576.00



  • Audio Sample rate: 5.5, 8, 11, 16 or 22 kHz
  • Recording format: Mono
  • Recording time: Max. 2240 minutes (8KHz)
  • Signal/noise ratio: 64 dB
  • Built-in microphone: Sensitivity within 7-9 metres
  • Compression algorithms: Without compression, uLaw (2/1) or ADPCM (4/1)
  • Battery life (continous at sample rate of 8 kHz): Up to 120 hours
  • Battery life (continous at sample rate of 11 kHz): Up to 90 hours
  • Battery life (continous at sample rate of 22 kHz): Up to 60 hours 
  • Battery life (VAS mode): Up to 400 hours 
  • Battery life (stand-by): Up to 12 months  
  • Battery: 240mAh Li-Pol Rechargeable Battery  
  • Weight: 21 g (with battery)
  • PC Interface: Up to 12 Mbit/s (USB 1.1)
  • Case: Leather Keyring
  • Dimensions (mm): 55 (diam) x 11

Our E-A21-2240 is leather keyring housing a digital audio recorder. Hidden inside this keyring is a battery, audio circuit, flash memory, usb interface and a microphone.


Capable of recording audio in the 300~11000 Hz range, the E-A21-2240 has an extremely sensitive audio microphone. This microphone is able to pick-up audio to a distance of approx. 7~9 meters. With a wide dynamic range, S/N ratio of the unit has been improved to 64 dB.


Recording is configured with the PC software and activated by depressing the single button on the unit. Audio can be recorded in a voice-activation mode or by schedule. LEDs then provide an indication of recording status and battery life. At the lowest quality setting, the E-A21-2240 can record for 2240 minutes.


Transferring of files to a PC after recording is made simple by the unit’s integrated USB interface. Software is included for review on Window’s XP computers.

Ordering Information

Item Description Price Qty
E-A21-2240 Keyring with Integrated Digital Audio Recorder R 9,576.00