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Spy digital voice recorder edic-mini tiny B21 300H usb
The EDIC-Mini Tiny digital voice recorder (DVR) is used for professional voice recording on to a flash media following by copying to a computer. EDIC-Mini Tiny B21 150h is one of the smallest digital voice recorder (like models B22 and A31) in the world and its retail cost is about 600 $.
one battery 1.5 V 11.6 mm x 5.4 mm (AG13, LR44, PR44, ZA675)
at sample rate 8 kHz, without compression - 10 hours (alkaline batteries), 60 hours (zinc-air batteries);
at VAS mode - up to 40 hours (alkaline batteries), up to 240 hours (zinc-air batteries)
K is the coefficient, showing how many times the maximum record time decreases at record mode change relative to 2-bit ADPCM mode (maximum recording capacity). For example, the record time will be 17920/5=3584 minutes for model B21 300h (17920) in the without-compression mode, at sample rate of 8 kHz (k=5).
Table 2. Battery life depends on compression algorithm and sample rate (alkaline / zinc-air)
* Two batteries (AG13 and A675, d 11.6 mm x 5.4 mm)
