The “Card Speaker” by IDEA International connects to your portable devices, including mobile phone, iPod and other PMPs, to pack five hours of power music on a two-hour charge while traveling. About the size of a credit card, as suggested by its name, and as thick as a blister pack of chewing gum, the portable speaker comes wrapped in a protective carrying case with a 3.5 mm connection plug and a USB battery charge cable. Available in black and silver colors with a mirror-polished back, the Card Speaker can be yours for $75.