Exclusive 3D animal characters designed by EMTEC The Special Edition set features baby Seal in 4 GB or 8 GB The Animal series is one of EMTEC"s best-selling with over 20 unique characters available Includes a cap holder and beaded chain, so you won"t lose the cap while the drive is in use. Each flash drive features colorful, thematic packaging that will pop off the shelf. Operating system Windows 2000, XP, Vista, 7; Mac OS 8.6 or higher