7 function safety flasher. Compact / light weight safety flasher with water resistant design. 5 bright LED lights emit powerful beams. 7 different steady and flashing lighting functions. Push button to turn on / off and switch functions. Built-in belt clip on back. Arm strap and bicycle attachment included. Powered by 2 AA batteries (not included). Ideal for joggers, cyclists, skiers, hikers, kids, Halloween and any occasion requiring visibility in the dark.