Gray Ferrofluid Bluetooth Speaker With Music Visaualizer

The ferrofluid will show agglomeration,disperse,suspending,sinking and otherstates with different music/sounds. These are the physical properties offerrofluid bodies, not a quality issue.
Part of the material components of the ferrofluid of the product are: pure water, mineral oil, and nano-iron powder, all of which are non-toxic and harmless.
lt is forbidden to use it in high temperature and sun exposure environment.
Hightemperature (such as inside a car) and sun exposure environment will causethe liquid to expand and cause the glass bottle to burst.

Connection Method：5.0 Bluetooth Connection
Package contains:1x Ferrofluid Speaker, 1x 12VDC Power Adapter, 1x Small Magnets, 1x Instructions