Slip this unit onto your Game Boy Color console to enhance every aspect of  gameplay of your favorite Game Boy titles. It includes a screen magnifier (which  effectively enlarges the game screen), two lights (so you can play in low-light and  no-light conditions), two speakers (turning the Game Boy Color's tinny sound into  louder, richer tones), and a mini joystick (for smoother gameplay). It's powered by two  AAA batteries (not included), or a Game Boy Color-compatibleDC power cord. An included  splitter cord allows you to power both the HandyPak Color and the Game Boy Color at  the same time.Although the HandyPak Color adds weight and bulk, it makes the Game Boy Color play  experience much easier on the eyes, ears, and thumb. The tradeoff is that the unit isn't  exactly pocket-friendly: you'll need some kind ofpouchor case to carry both the Game Boy Color and this piece of hardware. Still, if you've got  extra room in your backpack or briefcase, the HandyPak Color is the ultimate accessory.--Mike FehlauerPros:Better visuals, light, sound, and controlsMini joystick makes diagonal movements and rolls much easierIncludes power cord splitterCons:Bulky--this isn't something you'll tuck into your back pocket