Add lighting effects to your stereo
Adding blinking lights to anything is a surefire way to make it totally obnoxious. For some of you, that’s a good thing.
Here are two techniques you can use to add sound-reactive lights to your stereo, boom box, computer, or pretty much anything that makes music.
The first option is to use something like an EL Wire Sound Kit. These are sold online from various places and include some combination of electroluminescent wire, a power adapter, and a special power inverter that drives the wire’s power in response to sound picked up by an integrated microphone.
The whole kit typically costs around $50. You can get the EL wire in different lengths, colors, and thickness. You can use splitter cables to drive multiple strands of wire. It’s a great, uncomplicated solution, but it does have some drawbacks.