The C2 Cartridges are designed for use with the TASER C2 Security Series system. These C2 cartridges have a range of up to 15 feet (4.5 meters). The TASER Cartridges are designed for use with the TASER X26 and X26C systems. These TASER cartridges have a range of 15 feet to 25 feet (4.5 - 10.6 meters). The XP cartridge, ideal for colder climates, has a longer probe to penetrate thicker clothing. The 35' XP cartridge has been used with success in tactical situations where the extra distance is needed. Additionally, the TASER 21' Training cartridge uses non-conductive wires that prohibit stimulation role players from feeling the effects of TASER devices (to be used in conjunction with the TASER Sim Suit). All TASER cartridges below are compatible with the X-series and C2 TASER devices and include a patented Anti-Felon Identification System (AFID), so that each cartridge use can be traced. TASER cartridges utilize compressed nitrogen to propel two darts to the target.