VENOM Ferrofluid Music Rhythm Desktop Lamp Decoration

My son wanted a ferrofluid bottle for Christmas and I didn't think it was that big a deal. He let me know right before Christmas that was one of the things he really wanted.

So I ordered a cheap $30 ferrofluid bottle. But then I saw this and thought, "Maybe this will be cool too."

Boy was I right!! He LOVES this gift and while it wasn't super cheap, it was by far and away his most appreciated gift and I felt really good about it because it showed I was listening and I went above and beyond what he had asked for.

That said, how well does it work. It is pretty solid. You aren't going to get wild, bottle filling gyrations, but it does dance with music or talk. It responds very well to lower frequencies. And it is very neat that it has a battery, so when you unplug it and haul it around, you don't have to plug it in again to get it to work.

This is a really clever design, would be great for a science teacher, and for any science minded person who "has everything."

Good quality of materials works best with fast music, with classical it almost doesn't move

Totally random purchase. I was a little worried cause
most reviews were good but a few had particularly bad experiences (seems like factory issues and product defects), including the glass breaking and oil/ferrofluid spilling onto their desks. But, I’m glad I splurged for it.
Playing with the magnet manually is a lot of fun, did that right out of the box, though I’m a little concerned banging the metal magnet on the glass a lot might not be great haha (probably can put some cloth or rubber at the end of the magnet cause it’s strong enough still). But, when you get it plugged in and turned on, the backlight is BRIGHT, and staring it react to music is a lot of fun.
I had sort of imagined it like those videos where people put sand or fluid on speakers and it makes very cool, perfectly parallel shapes. It won’t make and hold specific geometric shapes with music, it’s sort of like lava lamp but fast moving (globules bounce up and down, breaking apart and coming together), though in that random bouncing you do get moments where those signature Ferrofluid sharp spikey arms pop out. Behaved differently than expected but, I find it equally awesome and mesmerizing.
The wood is nice looking too. Mine did have a TINY air bubble you can see when it is rotated but when it sits on a desk as intended, that bubble disappears into a tiny little gap at the very top of the circle and seems to cause no issues.