AlphaCool 12V Motorcycle Circulatory Cooling Vest Solo System is the perfect solution for keeping you cool while you ride. The AlphaCool 12V Motorcycle Circulatory Cooling System brings the top cooling technology into the motorcycle and ATV world, ensuring the utmost comfort during hot Summer rides. It is made up of a 6L Cooler Circulation Unit, a Liquid Cooling Vest, and a 3ft extension hose, operated by a motorcycle 12V power by SAE adapter. The system can also be powered with a 7.4V battery (sold separately). The mini pump unit circulates the cold water from the cooler to the liquid cooling vest to ensure continuous flow around the body. Temperature range 36AdegF-50AdegF (2AdegC-10AdegC). The 6L cooler system will support up to 6 hours of body cooling. Features: Direct 12V Connection for Ultimate Cooling Helps fight Heat Stress and Fatigue Temperature Range 36AdegF- 50AdegF (2AdegC-10AdegC) Up to 6 Hours of Continuous Body Cooling Circulates Cold Water for Instant Relief 12V Circulatory Cooling Vest System Includes: Circulatory Cooling Vest (1) Motorcycle Bag with Straps (1) 6L Cooler (1) Pump Circulation Unit (1) 3 Ft Extension Hose (1) 12V SAE Motorcycle Power Cord (1)