capacity:4/8/16/32gb
number of microphones: bidirectional
packing:1 pc voice recorder & mp3 player,1 pc cable
recording mode: click recording
transmission interface: usb 2.0
recording time: 500 minutes (specific subject to physical object)
size: 45*17*5 mm (1.77*0.67*0.20 in)
recording format: mp3
