RCA RP5036 Voice Recorder 256MB Built in Flash Memory MP3 encoding/playback - records files in mp3 format, also can play audio mp3 files downloaded from your computer USB -unit has a USB prot for file download to PC for storage Intro Scan - preview fo message content, allows you to quickly find messages Automatic voice activated record (AVR)- when in automatic voice activated record mode, recorder will sense the sound & start recording automatically. Recording stops when sound stops Variable Speed playback - select from multiple playback speeds so you can listen to your recorded files at your own pace Date/Time stamp - with this handy function you can easily identify what date and time a recording was made. Intro Scan - preview of message content-allows you to quickly find messages