The Sony ICD-U70 Voice Plus All-In-One DVR Solution is both an MP3 player and Digital Voice Recorder. 1 GB of built-in IC memory allows the ICD-U70 to store 16 hours of MP3 music* or up to 502 hours of dictation in LP mode. The Sony ICD-U70 Digital Voice Recorder provides easy playback of unsecure MP3 files via drag and drop. Operating on one AAA battery, the 2.26-ounce recording device includes a Digital Voice Up? function which increases the playback volume of the person speaking when recorded at a distance. The digital pitch control allows recordings to be heard at slower or faster than normal speeds without distortion to facilitate transcribing or editing, or to move faster than normal to a desired portion. A built-in USB allows the ICD-U70 to be plugged directly into a USB port on a computer or hub, eliminating the need for cables.Based on approx. 4 minutes per song at 128 kbps.1GB Built In Flash MemoryMP3 Playback3 Recording Modes: HQ/SP/LPUp to 502 Hours 45 Minutes Recording Time (LP Mode)Built-in USB5 Message FoldersAdd-Recording FunctionFunction Toggle ButtonDigital Pitch/Playback Speed ControlSlim Style DesignDigital Voice Up?Digital VOR (Voice Operated Recording)250mW Playback Speaker OutputDC-In Jack