Package includes - 2 heated insoles, 2 battery boxes, 1 USB, 2 leggings, 1 instruction manual (battery not included). Heated sole, even heating, low voltage, safe and energy-saving, fast heating, soft and comfortable.

High-quality material - The thermal insole is made of flannel + carbon fiber heating film + EVA insole material. The thermal sole provides warmth for everyday life and is ideal for keeping the body warm in cold temperatures.

Size information - Thickness: 5 mm Size: 36-47 (can be cut to size) and cannot be cut within size 35. You can usually clean the shoe warmer with water. It is best not to soak the USB in water and use it after drying.

Multi-use - The USB is suitable for home and office etc, and the battery is suitable for outdoor sports etc. Battery box: 3 sections with 5 sections DC35 battery box (battery not included). Perfect for keeping your feet warm in winter. The standard output for the heated sole is 4.5V. If the home charger or power bank does not reach 2A, the heater may not start. WIDE APPLICATION - All types of winter sports (skiing, snowboarding, etc.), working outdoors in cold rooms or on cold days, for police and army operations, rescue workers, etc., outdoor cycling, cold at home, etc.