Olympus Voice Recorder DS-2300. Maximum recording time: 5.30 h, Frequency range: SP(300 - 5,000), LP(300 - 3,000). Loudspeaker diameter: 28 mm. Compatible memory cards: xD Picture. Weight: 101 g. Minimum RAM: 128 MB, Minimum hard disk space: 50 MB, Minimum processor: Windows(Intel Pentium II class 333 MHz)Macintosh(500 MHz)