Main Features: Voice Operated Recording (VOR) activates the recorder only when the sound is present, conserving the space and eliminating soundless pauses during playback. HI/MD/LO voice signal sensitivity enables the unit to record different situations more effectively, from group meetings to individual interviews. Gap Coding enables the recorder to minimize the memory required for recording. With Gap Coding this Digital Voice Recorder is advantageous in saving you more than 40% of space with respect to other digital IC recorders. Important Message features offers the ability for priority message save/retrieval. This also helps draw your special attention to important message from being deleted by error. External power supply applicable for continuous operation time without having low battery problem. Remaining Recording Time Checking to Indicate how much time (HH:MM:SS) available for recording. You may check this availability timing under various operating conditions, e.g., Gap Coding enable/disable, HQ/MQ/LQ Erase One or All Message feature offers the ability to erase a single message, all recordings in a life, or all files. Level Setting helps retrieve the recordings for Playback/Erase/Repeat on FILE/ALL FILE/MESSAGE basis. Scan Palyback helps retrieve every recording with first-5-second playback to each message. Quality Mode Selection (HQ/MQ/LQ) offers you to set the recording quality. Built-in Flash Memory stores message on a random access memory circuit for instant manipulation and retrieval. Full Function LCD Display provides a highly visible display of all record/playback with accuracy. Hold Function prevents accidental operation while carring-around. 4 folders (A.B.C.D) available to record up to 99 distinct messages in each folder. Upload to pc in real time using the provided software.