MP3 Player Pen Up to 2GB, Full Metal Body, High Quality Voice Record Model: CNA I10 2GB Manufacturers ... recording Support MP3, WAV playback USB 2.0 full speed Compact Pen shape, full metal body Support MP3, WAV playback Super high quality ... Memory: 2GB flash memory embedded USB interface: USB 2.0 full speed Crystal sound quality: Output frequency range: 20Hz to 20kHz ...