Modifications:
B47-300h (last digits in the models’ names show the maximum recording duration (sampling rate 8 kHz, 2 bit ADPCM) in hours).
Specifications:
• dimensions: 50x15mm or 1.96×0.59 inches.
• weight:19 g (without battery).
• sensitivity of the built-in microphone 7-9m.
• recording mode – Mono;
• battery life in recording mode (sampling frequency: 8 kHz, uncompressed): from G13-A battery – up to 40 hours, from air-zinc batteries – up to 160 hours;
• battery life in VAS mode (for the signal below the threshold) – up to 168 hours;
• battery life in stand-by mode – 4,5 months;
• Power supply: battery G-13A-3 pieces;
• USB connector (the battery charges while connected to a computer)
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