Stun Knife 20 Million volt Stun Gun. Comfortable in hand, the Stun Knife delivers super powered stun protection. A built-in 3 1⁄4″ folding knife blade gives you razor’s edge protection if ever needed. The menacing sound of the Stun Knife’s arc of electricity can defuse a dangerous situation before it begins! It has a blinding 120 Lumen LED flashlight and great shape allowing for a superb grip. You can carry the Stun Knife in your hand, pocket, or in the nylon belt holster that’s included. The Stun Knife comes with a charging cord to recharge the stun gun and flashlight. It uses nickel cadmium rechargeable batteries that can’t be replaced.