Stun Master stun guns are powerful and inexpensive. One of the most popular stun guns in the world. High stopping power from 100,000 to 300,000 volts! If price is your main concern, then the Stun Master brand is for you. Low prices and high stopping power, the Stun Master offers the best of both worlds. One of the most popular stun guns in the world. These self defense weapons are small...only 4.75 inches to 6 inches. All have safety switches, wrist straps, and are covered by a one year warranty. Non lethal self defense to aid in your personal protection.