Here is another gorgeous speaker that uses magnetic fluid to visualize your music. This Bluetooth Ferrofluid Speaker has a compact design and 3 buttons in the back to control backlight and ferrofluid pattern. A tiny handheld magnet is included that you can use to interact with the ferrofluid inside even when the speaker is turned off.
More gadgets like this: here
Bluetooth Ferrofluid Magnetic Fluid Speaker ⚫ Gadgetify
The above video shows this Bluetooth ferrofluid speaker in action.
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