We seem to be pretty much pre-occupied by superlatives, and when it comes to the world of consumer electronics, this bit deep down inside of us remains the same. After all, who does not want to own the thinnest display in the world (apparently the latest claimant to that particular record has decided on using soap water as one of the “components”, if you can call it that), or how about the thinnest smartphone in the market at the moment? Well, Pioneer takes a familiar route with their Pioneer new X-CM31 audio system which is the smallest from the company to date. This is ideal for those who want a compact CD player complete with USB support as well as the ability to handle WMA and MP3 files. Not only that, it is also compatible with your iPhone, thanks to the built-in iPod/iPhone dock. You are able to choose from black, white, red and brown shades, where regardless of the color, it will measure just 200mm x 250mm x 12mm. This is one pocket punch, as it packs 2x15W audio output.