... Key included 4 function: Joking of Shock, UV Detector, Laser Pointer, LED Light. Portable take. Feature & FunctionThe 4-in-1 key ... ring has for buttons for Joking of Shock, UV Detector, Laser Pointer, LED ... take, and easy to keep with keys.Uses 4 AG3 batteries (Included) Laser max output<5mw ... .: 36.5*34.5*25CM 4 in 1 Shock Car Key w/UV Detector, Laser, LED Light