Key Features: 500,000 Volts in a compact package Worlds strongest STUN GUN Muscle Man used by police and security throughout the world Safety switch Wrist strap Safe, Effective Nonlethal 2x 9-v batteries (not included) Dim: 5-1/4" X 2-1/4" X 1-3/8 Lifetime warranty! Note: * All local laws apply, no sales to minors