Rio Carbon 5GB MP3 Player. The Rio Carbon is capable of holding up to 80 hours of MP3 (160 hours WMA) music, and with up to 20 hours of battery life on a single charge, music lovers need not worry about running out of juice. View a detailed diagram of the Rio Carbon’s features.

Sporting an ultrathin and tapered design and with 25 percent more memory than iPod Mini, this tiny MP3 player–about the size of a business card–will slide into any pocket, virtually unnoticeable. TheRio Carbon is capable of holding up to 80 hours of MP3 music. Rio Carbon MP3 Player.