Sony 4GB PX Series MP3 Digital Voice IC Recorder with Built-in Stereo Microphone

Product Description Recording quality – MP3 8 kbps (Monaural): 75 – 3000 Hz – MP3 48 kbps (Monaural): 75 – 10,000 Hz – MP3 128 kbps: 75 – 15,000 Hz – MP3 192 kbps 75 – 15,000 Hz Playback control – Digital pitch control (speed control) – Noise cut Easy search – Alarm playback Controls – Erase – Protect – Divide – Move files