The Taser C2 is a self-defense electronic control device capable of stopping a threat up to 15 feet away. Compressed nitrogen fires two small probes that are attached to the Taser C2 by insulated conductive wires. Transmits electrical pulses into the attacker's body, affecting the sensory and motor functions of the peripheral nervous system. Can penetrate two inches of clothing. $300. www.taser.com, 800-978-2737