. SHOE INSERTS HEATED HEATING USB 43-46 2. Cutting lines: Humanized insert can be cut by itself. The insert can be adjusted to fit your foot size. 3. Ultra thin insole: lightweight, comfortable and harmless to the feet. The front is only 0,5 cm thick and the heel is 2 cm thick. More intuitive ultra thin is applicable to sports shoes, leather shoes, shoes, snow boots, etc. 4. Safe and durable heat: heated cartridge, powered by 2 x 3300 mAh battery (included), can provide long-lasting heat. Let you feel the lasting warmth in the cold winter. 5. Fast heating: The latest chip is used for fast heating. Our heated liners are suitable for outdoor activities such as motorcycle, skiing, fishing, travel, camping, etc. . SHOE INSERTS HEATED HEATING USB 43-46 . SHOE INSERTS HEATED HEATING USB 43-46 Material: graphene Insert battery: 2 x lithium battery (included) Single cartridge battery capacity: 3300 mAh Battery for remote control: 1 x 23A battery 50mAh (included). SHOE INSERTS HEATED HEATING USB 43-46 . SHOE INSERTS HEATED HEATING USB 43-46 1 x Charging Cable 1 x Manual 1 x storage bag. SHOE INSERTS HEATED HEATING USB 43-46 . SHOE INSERTS HEATED HEATING USB 43-46 Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store