Steren REC-855 Manual De Instrucciones página 36

BATTERIES/POWER
1. Open the battery compartment on the back of the recorder and insert two AAA batteries,
pay attention to the polarity and replace the lid.
2. To turn on the recorder, press the [play / OK] button for three seconds.
Press the same button for another three seconds to turn it off.
The voice recorder can be powered also via USB (the battery will not charge).
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