Features: 100% brand new and high quality 3 heat settings: Provide the most appropriate temperature for everyone, press button to free adjust temperature settings. High qality carbon fibter material, soft and resistant, can be easily folded without being damaged. Can also be used when you sweat. This hat is made of high quality woolen material, breathable, soft and stretchy, not to include mobile power, 5v 2a mobile power required. The built-in heating elements help to concentrate heat in the ears to prevent the ears and the head from becoming cold. Suitable for men and women. Great for skiing, hiking, hunting, snow shoveling, fishing, cycling, etc., allowing you to enjoy time outdoors. 1 hat&cable only, other accessories demo in the picture are not included Specification: Material: Woolen Optional Color: Black, Gray Power Supply: USB Charging Heating Area: Posterior Brain High Temperature: Red: 55-70 Medium Temperature: Blue: 45-60 Low Temperature: Green: 38-45 Head Circumference: 56-60cm(22.05-23.62in) Quantity: 1 set Warm prompt: 1.Asian people size is 1 or 2 sizes smaller than European and American. 2.Please note that low temperature washed,do not bleach and place under the blazing sun for quite a long time. 3.As different measuring methods,it will occur 1-3 cm deviation about the items,please ensure that it is okay for you before ordering. 4.Because of different monitors and lamplight,the picture may not reflect the actual color of the item,really thank you for your kind understanding Package includes: 1 x Electric Heated Hat 1 x Cable(without retail package)