7. Playback -------------------------------------------------------------------------------------------------
7-1. Playback functions ---------------------------------------------------------------------------------
7-2. Play features -----------------------------------------------------------------------------------------
8. Management of Recording File ----------------------------------------------------------------
8-1. Set date and time -----------------------------------------------------------------------------------
8-2. Display information -------------------------------------------------------------------------------
8-3. Use the device with a computer ----------------------------------------------------------------
8-4. Structure of Recording le -----------------------------------------------------------------------
8-5. Lock and Unlock Voice File -----------------------------------------------------------------------
8-6. Delete --------------------------------------------------------------------------------------------------
8-7. Recovery of Deleted le --------------------------------------------------------------------------
9. Menu Settings ----------------------------------------------------------------------------------------
10. Audio Player, FM Tuner --------------------------------------------------------------------------
11. Firmware update -----------------------------------------------------------------------------------
12. Trouble Shooting ----------------------------------------------------------------------------------
13. Specication -----------------------------------------------------------------------------------------
14. Warranty & Customer Service -----------------------------------------------------------------
15. Introduction of compatible useful optional recording accessories -----------
16. Why we develop this product ----------------------------------------------------------------
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