T-shirt with graphic equalizer "THE SHOW OFF T-SHIRT"

T-shirt equipped with amazement gimmick that the equalizer will expand and shrink according to surrounding sound with EL display of three colors of green, yellow and red. It seems to work with 4 AAA batteries.

Details are as follows.
THE SHOW OFF T - SHIRT - With built in sound sensitive graphic! MEDIUM SIZE - gadgets, funny gifts and company gifts

The price is about 92 dollars, about 10 thousand yen. Hand wash possible by removing the battery. The material is 100% cotton. You will definitely pay attention if you wear it with a concert etc! I heard that it really works like this ... ... I want to watch a movie that is moving ... ....

2006/08/16 15: 08 Addendum:
It seems that it is not "sound equalizer" that moves in response to sound but "grift equalizer". Immediately after updating, a mistake point e-mail was flooded. The following five types are roughly divided.

1. Because the sound equalizer is a function to adjust the volume, it's different.
2. Is it a peak meter?
3. Is not it a graphic equalizer?
4. Is the official name a visualizer?
5. In the spectrum analyzer?

Looking at various things, visualizing sound is "Visualizer", this time it seems that "Graphic Equalizer" with simplified versions of peak meters aligned as type.