SONY DIGITAL IC AUDIO RECORDER ICD-PX470

Built-in, Direct USB connection for quick file transfer to your PC
Record in Linear PCM (WAV) & MP3 Formats
Onboard Stereo S-Microphone System
Internal 4GB Memory & microSD Expansion
Up to 1,073 Hours of Recording Time
Adjustable microphone range for clearer voices
Auto voice recording reduces background noise