iPAQ 3955 features the 400MHz IntelXScaleprocessor which allows superfast multimedia and multitasking. It's the most powerful and expandable iPAQ Pocket PC. The dazzling display has higher contrast, better color saturation and more than 65,000 colors. iPAQ Backup - backs up your applications and data to Secure Digital (SD) or CompactFlash (CF) card,iPAQ File Store protects critical data in non-volatile storage. Consumer IR, control home and office electronics systems with all the functions of a high-end learning universal remote control MicrosoftPocket PC 2002 audio record and playback - play MP3 music or audio programs from the Web, as well as record and play back voice notes or meeting.