Sony ICD-PX470 Digital Voice Recorder with USB

Record in Linear PCM (WAV) & MP3 Formats Internal 4GB Memory & microSD Expansion Onboard Stereo S-Microphone System Up to 1,073 Hours of Recording Time Wide, Focus, & Auto Voice-Recording Modes Built-In USB Connector 3.5mm Stereo Mic-In & Headphone Jack Battery Life up to 55 Hours