About this item ASSEMBLY INSTRUCTIONS & DIY FUN ---- This is a tesla coil DIY kit. We have very detailed user manuals to make assembly easier. Enjoy DIY fun and help you improve your practical ability. You can download the [product installation manual] which includes colored pictures in this page easily. No worry about manual lost or black and white copie manual anymore. LONG LASTING & EASY OPERATION ---- Bigger heat sink equipped, can works for hours. No security concerns. PLUG and PLAY! No grounding needed. BETTER PERFORMANCE ----This music tesla has circuit protection design, will not damage the input device, can play music in better quality than arc plasma loudspeaker, no format limitation. ENDLESS FUN ---- This music tesla has the function of wireless transmission and loudspeaker, can light gaseous tube and kind of bubbles, play all kinds of music. It is a perfect teaching tool to spark students’ interest of science, also a great gift. AMAZING CONVERSATION PIECE ON YOUR DESK ---- It's funny to see people's looks and reactions when they squeeze a little shot for this tesla coil model. Plug it and light LED bulb up, and then it works like charm. All of your guests want to know what happened, icebreaking success.