This product is suitable for winter heating protection, keeping coldness and frostbites from your feet.Adjustable Size: There are size cutting lines on the insole surface, which can be cut to the desired size according to the needs, and the arch effect is more fit and comfortable.It has a temperature remote control device.The different buttons on the remote control are used to control different operation modes, and the temperature can be controlled according to your own needs.With the built-in lithium battery, it can be used when fully charged. No need to tie the battery, no need to connect to the power source.Suitable for cold weather projects or winter outdoor sports, winter skiing, hunting, camping, riding, motorcycles to keep warm.Specifications:Name: Heated InsolesMaterial: polyester ABSWeight: about 0.45kgSize: S36-39, M39-41, L42-44, XL45-46Battery capacity: 3.7V1200mAhOutput power: 2.5WCharging power supply: 5V, USBTemperature selection: 3 modes temperature adjustmentTemperature range:High temperature mode: about 60-55 degrees Celsius, heating about 2 hoursMedium temperature mode: about 45-50 degrees Celsius, heating about 3 hoursLow temperature mode: about 40-45 degrees Celsius, heating about4 hoursPacking size: about 33*10.6*6.1cm/12.99*4.17*2.4inPacking List:Pair of Insoles*1USB Charging Cable*1Remote Control*1Notes: 1. Only sell main products, not other products.2. Since manual measurement is required, please leave a space of 1-3 cm.3. Due to screen differences, the color may be slightly different from your expected color, please allow.4. This product can be washed with water, remember to dry and heat the insole before using it.5. The elderly and children need to use it under supervision.Remind:After receiving the packaging, please check the packaging and the product carefully. If the re