Welcome to our store！</br> 1、USB HEATING: You can choose between a USB port, a power adapter or a mobile power source to heat the insoles. And it also has 3 gears temperature adjustment. 2、SOFT MATERIAL: Electric heating insoles are made of premium fabric, delicate to touch, warm and breathable, skin friendly, soft and comfortable to use and stable. 3、EASY TO USE: Heated insoles are easy to use, you just need to put them in your shoes and connect them to the power supply to enjoy the warmth. The heated insoles can be cleaned, but you should make sure they are dry before use. 4、WARM GIFT: Electric heated insoles are excellent gifts for men, women, your loved ones, parents, friends, the elderly, etc. It is a pleasure and happiness to enjoy the warmth with others. 5、WIDELY USED: Heated boot insoles are indispensable items in daily life during cold weather, also suitable for winter outdoor sports, such as winter skiing, hunting, camping and horseback riding. <p class="wang-edit-text"><p class="wang-edit-text">Item Type: Heated Insoles Material: Polyester Fiber Battery Type: 2 x Lithium Battery ( Shipped with Built in Battery ) Battery Voltage: 3.7V Single Mobile Power Capacity: 2200mAh <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 2 x Heated&nbsp;Insoles2 x Mobile Power 2 x Data Cable 2 x Wrist Strap Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>