- Material Quality: Crafted from high-strength ABS plastic with an elegant oak grain finish, this product features crystal diamond accents and high-transparency glass. It contains environmentally friendly and non-toxic nano iron powder and pure water. Note: This product does not include a speaker and does not produce sound. - Innovative Design: Inspired by ferrofluid, this unique design allows the ferrofluid to react and jump within the glass bottle to the rhythm of external sounds or music, creating a captivating visual experience. - Versatile Usage: - Acts as a dynamic companion for HI-FI and Bluetooth speakers, enhancing your audio experience. - Functions as a decorative desktop toy and creative gift, perfect for various occasions. - Serves as a ferrofluid display, voltage relief toy, or even a visually engaging metronome on your piano. - Stress Relief: Place the device next to your speaker to watch the ferrofluid dance to the music's rhythm. This mesmerizing display can help reduce stress and enhance your listening experience. - Convenient Features: Equipped with a built-in microphone and white LED backlighting. The device operates independently without a wired connection, thanks to its built-in battery that lasts for up to 8 hours on a full charge. Transform your music listening experience with this visually stunning ferrofluid display that combines art and sound in a unique way. Perfect for any music lover or as a standout decorative piece in your home or office.