- HIGH QUALITY MATERIALS AND BUILD Made of durable ABS plastic, clear glass, nano iron powder, and non-toxic pure water. The white LED backlight is powered by an internal battery and provides up to 8 hours of operation on a single charge. - MUSIC VISUALIZATION THAT COMES TO LIFE Sound Fluid opens a new chapter in music visualization. As the rhythm changes, the ferrofluid dances and morphs, changing speed and shape to create a dynamic visual representation. This product is not a speaker and does not produce sound; it is a form of visual art. - PRACTICAL ATTRIBUTES Visual display focused experience suitable for ambient art and decorative lighting. Safe materials and quiet operation make it suitable for home, office, or event environments. - USE SCENARIOS Living room ambience during music playback or movie night Desktop or workspace visual accompaniment while listening to music or podcasts Display centerpiece or mood lighting for small gatherings, cafes, or events