1、Intelligent temperature control system: quickly heat up to 65°C within 30 seconds and automatically stop heating. 2、3-level temperature adjustable: 38-45°C / 100-113°F, 445-55°C / 113 -131°F, 55-65°C / 131-149℉. 3、5pcs metal wires can be evenly heated to the shoulders, waist, legs, feet and other parts. 4、Skin-friendly polyester fiber fabric keeps you warm and anti-slip and cold insulation epoxy fabric on the back. 5、Hand and machine washable after removing battery. ( not included) 6、Can be stored in a very small storage bag. Features: Intelligent temperature control system: quickly heat up to 65°C within 30 seconds and automatically stop heating. 3-level temperature adjustable: 38-45°C / 100-113°F, 445-55°C / 113 -131°F, 55-65°C / 131-149℉. 5pcs metal wires can be evenly heated to the shoulders, waist, legs, feet and other parts. Skin-friendly polyester fiber fabric keeps you warm and anti-slip and cold insulation epoxy fabric on the back. Hand and machine washable after removing battery. ( not included) Can be stored in a very small storage bag. Specification: Material: polyester Color: Black / Grey / Orange / Camouflage (Optional) Metal Wires: 5pcs Power Supply: 5V / 2A 3-Level temperature: 1st Gear: 38-45°C / 100-113°F 2nd Gear: 45-55°C / 113 -131°F 3rd Gear:55-65°C / 131-149℉ Duration for 10,000mAh power bank (not included): 1st Gear: 9-11 hours 2nd Gear: 7-9 hours 3rd Gear: 5-7 hours Mat Size: 198 * 61cm / 78 * 24in Package List: 1 * Sleeping Mat (No power bank) 1 * Sleeping Mat (No power bank)