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 or 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. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!