The ICD-P520 is great for school or the office. Record up to 7,800 minutes with 1-touch recording, and control the speed of playback. It offers 4 message folders and 3 recording modes. The ICD-P520 is also PC compatible. It has 256MB flash-based memory, voice-activated recording and a headphone jack for private listening (headset sold separately). Requires 2 AAA batteries (included). Backed by the manufacturer's 90-day parts, 1-year labor warranty.