1、Three Heating Adjustment: The excellent nanometer heating wire with fast heating is used to heat the insole at three temperatures, namely low 45℃ , middle 55 ℃ and high 65 ℃. 2、Cutting Lines: The humanized insole can be DIY cut. You can tailor the insole according to your foot size. Don't worry about the size after you buy it. 3、Ultra Thin Insole: Light, comfortable and not harmful to the feet. The front is as thin as 0.5cm, and the heel is 2cm. The more intuitive ultra thin is applicable to sports shoes, leather shoes, boots, snow shoes, etc. 4、Safe and Lasting Warmth: Powered by 2 x 3300mAh battery (included), the heated insole can provide longterm heat. Let you feel the lasting warmth in the cold winter. 5、Fast Heating: The latest chip is used for fast heating. Our heated insoles are suitable for outdoor activities, such as motorcycle, skiing, fishing, travel, camping, etc. 2 x Heated Insole1 x Remote Control1 x Charging Cable1 x Instruction1 x Storage Bag Item Type: Heated InsolesMaterial: GrapheneInsole Battery: 2 x lithium battery (included)Single Insole Battery Capacity: 3300mAhRemote Control Battery: 1 x 23A battery 50mAh (included)