BEFORE PLACING YOUR ORDER CONTACT US SO WE CAN CONFIRM AVAILABILITY AND OFFER YOU A DISCOUNT CODE. YOU MAY DO THIS VIA CHAT OR EMAIL [email protected] SEND US THE PRODUCT NAME AND WE WILL PROVIDE THE DISCOUNT CODE. WE PREFER CHAT TO GET RESPONSE. Do you want to say goodbye to the coldness and enjoy any winter outdoor activities freely? Our battery powered heated insole is a good choice for you! Built-in 3000mAh battery in each insole, you can keep your feet sole warm about 4.5 hours in high temp, 5 hours in medium temp ad 10 hours in low temp. Come with 2-in-1 Type cable, can charge your dual insoles simultaneously about 4 hours for fully charged. Designed with clear size trimming line on the sole bottom, simply trim the insole to fit your feet well. Suitable for outdoor sports like hunting, hiking, camping, etc..