Music Visualization: The Sound Fluid introduces a in music visualization. As the rhythm changes, the dancing ferrofluid toy forms in speed and shape, creating a stunning visual display. This product isn't a speaker; it's a form of visual art that doesn't produce sound on its own. High Quality: Constructed with ABS plastic, high-clarity glass, nano iron powder, and non- pure water. The white LED backlight operates wirelessly with an internal battery, offering up to 8 hours of use on a single charge. Multiple Modes: Sound mode,ferrofluid reacts to ambient sounds;Natural mode,ferrofluid responds to natural music;AUX mode, connects to your computer to react to sound played through your device.<br><br>01. Charging: When connected to a TYPE-C charger, the charging indicator light turns red. After charging, the indicator light turns off. 02. Switch: Long the power button for 3 seconds to automatically enter the pickup mode after turning on, and the magnetic fluid be adsorbed for 5 seconds. 03. Pickup mode: In the pickup mode, short the power button to switch between the pickup mode and the automatic drop mode, and the backlight flash twice. 04. AUX mode: After the AUX interface is connected to the device, it automatically enters the AUX mode. Short the power button to switch between the pickup mode, automatic jump mode and AUX mode. And the backlight flash twice synchronously. Colour:White Material:plastic<br><br>Package Contents: 1 * Magnetic fluid sound visualizer<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.