Olympus DM-650. Maximum recording time: 1026 h, Recording modes: HQ, LQ, PCM, Audio formats supported: MP3, PCM, WMA. Internal memory: 4096 MB. Display: LCD, Display diagonal: 42.9 mm (1.69 "), Display size (HxV): 31 x 29.7 mm. Loudspeaker diameter: 20 mm. Interface: USB