Sony ICD-B16 Portable Digital Voice Recorder Portable digital voice recorder with selectable 300-minute/495-minute recording capacity 16 MB built-in flash memory, 2 message folders 1-button play from record, incremental rewind, battery-saving hold switch 1.25-inch speaker with 350 mw output Full-function LCD with low-battery indicator; runs on 2 AAA batteries (supplied)