1. One key heating, three temperature control (25 degrees Celsius/35 degrees Celsius/45 degrees Celsius), four zones of warmth 2. Carbon fiber heating wire, excellent conductivity and thermal conductivity 3. Thick heat-conducting lining, breathable and warm, comfortable and delicate, soft and smooth to the touch 4. Safe and radiation-free, no hidden danger of electric shock 5. Need to connect 5V 2A mobile power use (mobile power is not included) 6. Anti-scratch fabric, wear-resistant 7. Waterproof fabric, rain or shine, machine washable 8. Material: polyester fiber 9. Collar shape: stand-up collar 10. Lapel: zipper 11. Style details: pocket decoration 12. Hem design: straight hem