"This diminutive stun gun is a mere 3 1/2in. x 2 1/8in. x 7/8in. and only 3 oz., but will floor an attacker with an immobilizing 350,000 Volt zap in just a half-second. Extreme high-voltage powerful stun gun in a palm-sized package. Check your state and local laws in regard to possession and/or use of stun guns before ordering. Batteries qty. 3, Battery Type Lithium CR123, LED Indicators On/off, Volts 350,000, Product Type Handheld. Uses 3 lithium CR123 batteries included Easy and safe to use On/off switch Safety button LED indicator Comfortable rubber-coated contour grip Includes nylon holster"