Sony IC Recorder 4GB, AAA Battery Compatible, ICD-PX240, USB 2.0

Sony

Equipped with 4GB of built-in memory, allowing for up to approximately 1,043 hours of recording time. *When recording in LP mode (MP3 mono 8kbps)

Features a "noise cut filter" to reduce background noise.

Supports "digital pitch control," enabling playback at natural-sounding pitches (0.5x - 2x speed)

Uses 2 x AAA batteries.