Replacement Sound and Music Activated Spectrum VU Meter EL Visualizer - Heart (2*AAA)

Pros: Good for parties!
Amazingly priced
Sweet if you have an extra velcro shirt with a hole in it to put it on
Good shape

Cons: Very cheap feeling
Mic doesn't really pick up sound, more picks up movement. It would prolly pick up hardcore techno beats though :P

Other: Fine, Kinda cheap, not very good for sound, requires another shirt with velcro, get it if you like

Pros: Delivers what you'd expect for this price :)

Cons: The double-sided tape looks like something that will not probably stick to textile too well. Not that I actually tested this on a garment, as my use for this product was something completely different. The visual pattern is hard-wired so you really can't call this product a equalizer nor a VU meter at all. The hard-wired sections are simply lit according to the volume picked up by the microphone.

Other: I can't really see this product permanently sticking to a garment or able to withstand machine wash with the double-sided tape included. If you're planning to do so, using some sort of a textile glue might prove more long-lasting. The product is definitely a lot better if attached to any other surface more solid (f.ex. plastic or wood).