64MB memory - can hold up to an hour of CD quality sound. At least10 hours of battery time with 2 x AAA batteries. Measures 6.5cm x 8.7cm x 1.7cm. File transmission speed of up to 1.3 MB per second. Records up to 125 voice tracks with 128 minutes of available space. Phone directory stores 350 names with two phone number fields for each. Comes with RealJukebox software for encoding your CD collection. Seven-mode equalizer, with 3D sound. SmartMedia memory card slot for future storage capacity expansion. Supplied with: earphones; parallel port PC connecting cable; RealJukebox CD-ROM; batteries. Not compatible with Mac.