HEAT 4 is the leading heated glove. The new thermoregulated heating system developed by the RACER® Research and Development Department extends the battery life by 50%. It has a new exclusive intelligent button with battery level indicator. It also has three heating levels, which means it can reach a maximum battery life of two hours (in the maximum mode) and up to ten hours in the minimum mode. It is permanently insulated to ensure exceptional comfort and to guarantee a very high level of warmth.