First things first: you can’t plug your guitar into this. It’s not a guitar amp, and it doesn’t have a 1/4-inch input, and the 6.5-inch speaker simply isn’t designed for it. It does have stereo analogue inputs, meaning it’ll hook right up to your game console, giving your rhythm game of choice a little more power, and a little more sound resolution.
At first glance the concept is patently ridiculous—the line between an amp and a fake amp is much thinner than between a guitar and a fake guitar, and you can buy an amp for this much—but rhythm games are essentially social, so having a portable “amp” to bring to parties isn’t actually a terrible idea. [Altec Lansing]