Led Display Cap: 1.The most advanced LED technique 2.Fast delivery ... can store 256 characters)(3) 9 levels of speed to display, and 9 levels of luminance for adjust by user(4 ... message with the up and down keys(5) Different animation display, the message can scroll up and down, from left to ... to your personal designs or logos.Photos : 100% Cotton LED Display Cap for Hip Hop Boys