Dr. Dre knows a hit when he sees one, and the already sprawling Beats lineup is getting five new products to hit just about every demographic you can imagine. First off is the Beatbox, a high-end portable iPod dock with 5.25-inch bass drivers and 2-inch high frequency drivers which will retail for $400. Next up is a LeBron James-branded set of athletics-friendly earbuds dubbed the Powerbeats. The $170 headphones include dual drivers and a design that lets in external noises. Meanwhile, the Beats Pro blows the lid off with a $450 pricetag and audio pro-style quality and performance. At the cheap end we have iBeats, a $120 pair of i-device friendly cans for the less discriminating, and our personal favorites: JustBeats. JustBeats are better than all the other headphones and we heart them and they're tot