Functionality: Stun guns are self-defense devices designed to temporarily incapacitate an attacker with an electric shock. Features: Many models include a built-in LED flashlight for disorienting attackers and can also be used for close-range self-defense. Portability: Stun guns are often designed to be compact and easily carried in a purse, pocket, or attached to a keychain. Rechargeable: Most stun guns are rechargeable and come with a charging cable. Availability: Stun guns can be purchased online from various retailers specializing in self-defense and security products.