Olympus DM-620 SLV Voice Recorder Manufacturer Refurbished (142665) Record In PCM (WAV) MP3 and WMA Formats on the internal 4GB Memory (includes microSD Expansion slot) Tresmic 3 Microphone System. Variable Control Voice Actuator. Bright LCD Display with Voice Guidance. Built-In 20mm Dynamic Speaker. Microphone 3.5mm Input. Headphone 3.5mm Output. Olympus Sonority Editing Software Hi-Speed USB 2.0 PC