This is a

【VOICE & TELEPHONE RECORDING】

• Ultra long recording time ( up to   minutes ).

• Can record 2 way telephone conversation contents.

• Selectable recording quality.
• Selectable Recording Modes: All Time Recording or Voice Activated Recording.
• Optional wireless microphone provides remote recording.
• 4 Playback modes: Single Track, Single Track Repeat, Single Folder, Folder Repeat, All Folder Repeat, A to B repeat.
• Import Message Lock to avoid accidental deletion.
• Key lock to avoid accidental touch.
• 4 folders for easier file management. Each folder can save 99 files.
• Time Stamp for Recording ( year, month, date, hour ).
• Built-in mini speaker with jack. The user can play the sound directly or through the earphone, speaker set.
• All recording files are in WAV file. It can be played directly or through the computer.
• Can download all recording files into computer. The user can  change the file name for easier management.
• Powered either by one AAA battery or external power source.
• Power saver to save battery power.

【USB STORAGE】

• Built-in USB plug. No need to prepare connection cable.
• Portable, huge storage capacity ( 512MB / 1GB / 2GB ) can store all kinds of files. 

【MP3 PLAYER】

• Can store and mass MP3/WMA files.
• 5 selectable ( POP, JAZZ, ROCK, CLASSIC,  ) sound quality in MP3.
• Selectable mono / stereo sound quality.
• Can play the sound directly or through the earphone, speaker set.
• Stereo, crystal with micro-processing sound quality.

【FM RADIO】

• 2 selectable bands ( 76MHz - 90MHz or 88MHz - 108MHz ).
• Auto Scan.
• Earphone set.

【CALENDAR】

• The LCD displays current time ( year, month, date, hour, minute ).
• LED backlight to help viewing the display in the darkness.

• Helps prosecutors, policemen, investigators collect evidence for law enforcement purpose.

• Students.

• Engineers.

• The user of telephone and cellular phone.