Within any generation of iPods, various models with different sizes of hard drives have come onto the market at different price points. During the third and fourth generations, three sizes of iPods have co-existed in the marketplace at any given time, priced at US$299, $399, and $499. The least expensive comes with the line's distinctive white earphones, a FireWire cable, and a wall plug to recharge the iPod's internal battery. The other two models include all that along with a belt-clip carrying case, a wired remote control, and a docking cradle.

The Nintendo DS (which is short for Dual Screen, although Nintendo has also promotionally said it to be short for Developer's System, due to the manufacturer's claim of the \"sheer joy\" of developing games for the handheld), is a dual-screen portable handheld game console developed and manufactured by Nintendo. Its code name was Project Nitro. The DS has a vertical clamshell design, similar to some Game