ESUMIC Ultra Thin 30 Micro LEDs Bulb Fairy String Light With Battery Compartment,Flashing Mode (Blue) 30 Mininature LED lights on a 10ft Long Ultra Thin Silver Wire Three Modes: Steady ON, Steady OFF ,Twinkling Powered By 3 "AA" Batteries(Not Included) Great For Use In Wedding ,Party ,Christams , Xmas Tree ,Costumes E-co Friendly ,Minimum of 12 Hours Operating Time-Steady ON