"ION BLOCK ROCKER IS PERFECT FOR TAILGATING"5.0 starson by MPYOUNG33
Pros: Loud enough to annoy your neighbors at a tailgate party. Long lasting battery...you get atleast 8 hours out of the battery.
Cons: Batteries don't last forever!
Summary: This is the best product out right now at this price point. If you're looking to play music at a tailgate party without lugging around a loud generator this is the product for you. The only downside to a portable stereo/pa system is that it runs off a battery and batteries as we know don't last forever. Ion sells a replacement battery for about half as much as the unit cost which I think is outrageous. There is a seller on ebay that sells Ion Block Rocker replacement batteries for a reasonable price. The seller also includes detailed instructions on how to replace the battery. If I can replace the battery anybody can! I give the Ion Block rocker 5 stars for innovation, portability and reliablility.