The Mini Music Coil Kit is an innovative and entertaining product that combines science and . With its music coil, it generates funny and safe voltage plasma, allowing you to perform various experiments and demonstrations. Although the sound output is not very loud, it provides a peaceful and enchanting experience when combined with the mesmerizing electric arc. Features -Color:Multi -Material: -Size:7.90X4.00X0.10cm/3.10X1.57X0.04in -Size:6.00X2.00X2.00cm/2.36X0.79X0.79in -Power input: DC 15-24vV - : 2A -Pin header: DC5.5 -Audio input: 3.5 jack -Note:Do not put mobile phones, mp3 and other electronic devices close to the coil. - Not only a perfect teaching tool to spark students’ interest of science, but a multi-functional artwork with high playability. - With wireless transmission function, gaseous tube and kind of . - This desktop is small, light, and easy to carry, can take it with you wherever you go. - It is a perfect teaching tool to spark students' interest of science, also can be a nice gift. - You only need to twists an electric-pin and plug-in the power sources to experience the charm of electrical discharge. Package list: 1 x set of music coil