These cool T-shirts come with a glowing and animated Transformers logo. They will help you showoff your allegiance in the upcoming Transformers wars. You can proudly chose to wear the logo of the good (Autobots) or the bad (Decepticons) on your shirt. Though it would be a good idea to wear one underneath the other (just in case).Snip from the site:Product Features
* EL Lit Glowing T-Shirts feature either the Autobot or Decepticon Logos
* Battery Pack fits in small interior pocket inside shirt
* Button on battery pack controls Animation style
* 2 AAA Batteries Required
* Battery pack is removable, shirt must be hand washed