Stores up to 8 hours of music. Plays 16+ hours with 1 AAA battery (included). FM Tuner with 20 presets. Records voice, live sound, and FM radio, SD/MMC memory expansion slot. Pro style earbuds, belt clip case and armband included. USB 2.0 connection for hi-speed music transfer. It also includes an installation disk, quick start guide, and warranty card. The system requirements are Windows 98 SE, ME, 2000, XP, or Mac OS X, Intel Pentium II 300 MHz or equivalent, 128MB RAM, 150 MB available hard drive space, USB Port, and CD-ROM Drive. It is manufactured by Ilo Technologies.