Bluetooth Connection, Through Bluetooth Connection, You Will See The Arc Of The Coil Is Beating With The Music, And Play Square Wave Music In The Form Of Clusters With -Pattern Energy Concentration. When Touched By Hands, There Will Be A Tickling Feeling, Which Is Very Interesting And Can Effectively Attract Attention And Improve Students' Exploration Ability. Fun Science Experiment, This Experimental Music Coil Model Has Wireless Transmission And Speaker Functions, And Can Light Up Neon Lights. You Can Touch It At Will To Generate -Pattern In Your Hands, Which Is Very Suitable For People To Learn Science And Physics And Is A Good Teaching Tool For Physics And Science. Simple And Safe To Operate, This Experimental Music Coil Model Is Wireless And Has No Grounding And Audio Cable Connections. Slowly Increase The Power To Control The -Pattern Arc And Gradually Become Larger, But You Can Also Connect It To A Mobile Phone And Switch To The Music Gear To Let The -Pattern Change With The Rhythm Of The Music, Which Is Very . Modules Can Be Placed Horizontally Or Vertically, Depending On Your Preference. Plug In And Light Up The Led Bulb And It Works Like A Pendant. This Is A Fun Piece Of Art Decoration. It'S Funny How People React With Surprise When They See This Strange Thing That Emits -Pattern. Multi-Functional, This Experimental Music Coil Model Can Wirelessly Light Up Gas Lamps, Such As Neon Lights, Fluorescent Lamps, Old-Fashioned Energy-Saving Lamps And Other Multi-Functional To Meet Your Needs. Give It To Your Family Or Friends, They Will Be Very Satisfied With This Special And Gift. Description: 1. Type: for Coil 2. Model: Bluetooth Music for Coil 3. Length: 1-10cm (Adjustable VIA Knob) Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, the , the Philippines, Taiwan and so on. voltage: AC100-240V Material: PC colour: White Package Contents: 1 x Bluetooth Music FOR Coil Module 1 x Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.