T-Phones Sound Equalizer T-Shirt With Sound Sensor. The equalizer inside the headphones flashes in time to the music wherever you are, combining retro-cool with up to the minute digital technology. The T-phones Shirt has a built-in graphic equalizer with a wide spectrum sensor controller to detect the true rhythm, frequency and beat of music. Eye-popping Display! This animates the ultra-thin Electro Luminescence panel in the chest for an eye-popping display as the Equalizer bars light up and respond to the music. Control the BEAT! There is also an easily accessible adjuster control, allowing you to prep your shirt for low ambient beats or the loudest club music you can bear! Concealed Controller -The improved T-Qualiser system includes a lightweight battery pack that is cleverly hidden in a secret pocket in the shirt. The pack gives great battery life and is durable enough to withstand even the wildest night out. Get on with IT!