... can upload to PC via mini USB * Equip with PC software for download and upload.* Control interface Key, serial interface* Record ... downloaded support 8 KHz to 24 KHz.* Equip with PC software, support WAV, MP3, ADPCM format download* Recording 256 voice groups ... recording durations.* Minutes of meetings, telephone recording, retaking courses machine, learning machines, etc. record module for ...