The 8 Inch Purple Plasma Ball from Tradeopia is a neat gadget that responds to both touch and sound. It creates cool patterns by pulling plasma streams toward your fingers when you touch it, which is pretty mesmerizing. The audio-sensitive mode is designed to react to sounds like music or even your voice.

The manufacturer describes it as syncing with nearby sounds, turning your room into a light show. Sounds fun, right? It could really set the mood at a party as the plasma arcs dance along to your favorite beats.

But if you're all about that sound-sensitive feature, there are some mixed reviews. We found that while many folks love its size and the light display, the sound sensitivity isn't always spot-on. Sometimes, it needs the volume cranked up to really respond—which isn't always ideal.

If you mainly want it for the visual appeal and the touch interaction, this plasma ball still rocks. It's bound to brighten up any space with its dynamic light show. However, if you're mostly after flawless sound sensitivity, just be aware that it might not always hit the mark.

In short, think about what you're looking for. The visual and touch features are definite highlights, adding a touch of magic to any room.

For the audio mode, you might need to turn up the volume a bit more than you'd expect based on what we've found. Still, it’s a fascinating piece to have around, perfect for sparking conversations or adding some flair to your decor.