Forum Novelties Mega Strobe Super Bright Battery Powered Party Light with Thunder Sound Effects Mega Strobe Light with Thunder Sounds is battery powered, so you can use it anywhere Adds special effects, fun and excitement to parties Combine with other party items by Forum Novelties for the ultimate fun celebration Ideal for Halloween celebrations, haunted houses, parties and more Made by Forum Novelties, a leader in costumes and novelty products for more than 30 years