The innovative Streetwise™ Sting taser Ring Rechargeable Stun Gun Black 18M is the ultimate in concealable self-defense weapons. With this little ring gun, that weighs only 0.32 lbs., on your finger your attacker will never know what hit him as it can be easily concealed inside your fist. This ring has a more impressive punch than most of the bigger stun guns do. It unleashes 18,000,000 volts of electricity and it can be activated easily with a simple squeeze due to the innovative Squeeze-N-Stun Technology. Fashionably designed, this ring is powered by a built-in rechargeable battery and comes with a charging plug that can be used in any standard USB port. As a safety feature it has an on/off switch that prevents any accidental discharge as well. With your purchase you’ll also receive instructions and a lifetime warranty.