You should see this cool Light & Sound Hat. Its designed by combining the sense of fashion and gadget. The Light & Sound Hat has serial number of GBP. This hat will not only keep your ears warm but also adore you with your favorite music. Light & Sound Hat is specified by a 3.5mm standard headphone output, two light-up equalizer panels and built in speakers that able to connected you to all your music device: iPod, Mp3/MP4 player or even cellphone.