Detectives say the three men walked into the Radio Shack on Hempstead Turnpike in West Hempstead shortly before 7 p.m. Sunday, flashed a gun and tied up the two employees manning the store in a back room.
They then grabbed an assortment of electronics and ran off. No injuries were reported.
Police say one of the suspects was wearing a pink dress, cargo shorts and a blonde wig. The other two had on hooded sweatshirts and hats.
Anyone with information about the robbery is asked to call Nassau County Crime Stoppers at 1-800-244-TIPS.