FEATURES:

• Audio Sample rate:5.5, 8, 11, 16 or 22 kHz
• Recording format: Mono
• Recording time: Max 3 Hours
• 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: 1.5 V, 357 (G13) type
• Weight: 10 g (with battery)
• PC Interface: Up to 12 Mbit/s (USB 1.1)
• Case:Plastic
• Dimensions (mm): 40 x 10 x 15

One of our most popular models, the E-B21-300H is a mini audio recording device measuring an amazing 40 x 10 x 15 mm. It weighs only 10 g with battery and has 2GB of onboard storage flash memory.

AUDIO:

Capable of recording audio in the 100~10kHz range, the E-B21-300H has an integrated high-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:

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 LEDs then provide an indication of recording status and battery life. At the lowest quality setting, the E-B21-300H can record for upto 300 hours.

USB INTERFACE:

Transferring of files to a PC after recording is made simple by the unit's integrated USB interface. Software is included for Windows computers which allows one to configure the recorder and convert the files to standard audio formats.

BATTERY LIFE

• 8 kHz Sampling, No Compression, Alkaline Battery = 10 Hours
• 16kHz Sampling, No Compression, Alkaline Battery = 6 Hours
• 22kHz Sampling, No Compression, Alkaline Battery = 5 Hours
• 8 kHz Sampling, uLaw Compression, Alkaline Battery = 9 Hours
• 16kHz Sampling, uLaw Compression, Alkaline Battery = 5 Hours
• 8 kHz Sampling, uLaw Compression, Air-Zinc Battery = 55 Hours
• 16kHz Sampling, uLaw Compression, Alkaline Battery = 9 Hours