Bluetooth Music Tesla Coil Arc Plasma Loudspeaker Square Wave Music Spectrum Desk Setup Decoration Science Gift

Better performance and visual effects: with circuit protection design, will not damage the input device, can play music in better quality than normal arc plasma loudspeaker. Specially design for square wave music to get incomparable sight experience.;
Strong function but easy use: with Bluetooth connnection, no grounding and audio cable needed. Designed with frequency knob, energy knob and mode switch, and euipped with neon bulbs, freely to adjust proper display effects you want.;
Endless fun and spark inspiration: with the function of wireless transmission and loudspeaker, can light gaseous tube and kind of bubbles. It is a perfect teaching tool to spark students interest of science, also a great gift.;
Mini size but powerful energy: only 4.13 * 4.13 * 2.15 in, but it has a shocking energy. Its exquisite craft, beautiful modelling, unique style. It is suitable for household decoration, superior business gift, or education model for children.