Note: The product does not include mobile power. This adjustable electric heated jacket has 7 carbon fiber heating elements generating heat across core body areas (abdomen, waist, mid-back and back-neck). At the press of a button, the 3 available heating settings (high, medium, low) can be adjusted according to the needs of the body.The Button light can be on/off at your will while the heated Jacket is Working,Light-off button suit all occasion ,in case client don't want the light sometime. Three temperature options: low temperature about 38-45 degrees; medium temperature about 45-55 degrees; high temperature about 55-65 degrees. This machine-washable heated jacket, is water, wind and scrape resistant.The harden brim design keeps rain and snow out.