TDLTEK Sound Activated Neon Glowing Strobing Electroluminescent Wire /El Wire , Purple 9ft Sound Activated controller Requires 2 "AAA" Batteries (not included) 9ft 3m Neon Blue Electroluminescent (EL) Wire (2.3mm) Great for Parties, Burning man, halloween, Raves, Costumes & Decorations Water resistant and weather durable