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The H2 records your audio onto easily-found SD flash cards with capacities up to 16GB. A 1GB card is included so you can begin recording right away. When a 4GB card is inserted, you can record up to 2 hours of audio at 96kHz, 6 hours at 44.1kHz, or up to 138 hours in MP3 format. The pocket-sized device runs on 2 standard AA batteries to provide up to 4 hours of continuous operation.
Manual: Zoom H2.pdf