Esky 10ft Portable Water Resistant Neon Glowing Strobing Electroluminescent Wires (El Wire) for Parties and Festivals, with Battery Pack, Many Color Options (Aqua-blue) 10 feet of 2.3mm EL wire Battery pack controller with off/on switch and strobe mode Great for rave parties, displays, and costume decorating Note: Requires 2 AA batteries for use. Batteries not included.