jxhracing JH001 Heated Warm Jacket-X Large Small polymer battery, it is handy to put it in pocket, and adjust the switch and temperature. When out of power, it must recharge for 12 hours for the first, second and third time. Afterwards, when the adapter light turns green means that it is recharged full(Standard charging time:5~6 hours) Led temperature controller with microprocessor can adjust three kind of temperature according to different environment (from 45 to 60 degree). The heated piece with characteristic high temperature resistance, abrasion resistance, corrosion resistance, fatigue resistance, heat conduction, electric conduction, soft and health care. Long warming time of 6~15 hours after one time charging. The heated jacket can be washed or dry washed after taking off the battery. Suitable for all people including men, women, old or young. Various styles available.