Key Points: 1 Environmentally friendly materials: safe and environmentally friendly materials, the latest high-efficiency carbon fiber heaters. High-density, built-in safe 1900mAh Li-polymer battery. The circuit and battery are protected by a steel case with high load bearing. 2 Temperature adjustment: High temperature mode 2-3.5 hours (53-60), medium temperature mode 3.5-5.5 hours (48-52) - low temperature mode 5.5 -9 hours (40-50) (depending on environmental conditions). 3 Easy to use: wireless remote control for maximum comfort. 4 Cuttable: Can be cut to the right size to adjust to your shoe size and trim the sole to suit your needs, from 35-40 EUR size and 41-45 EUR size. 5. Keep Your Feet Warm: Solve cold-weather foot discomfort. Keeping you active during certain winter activities such as hunting, skiing, motorcycling, climbing or walking, etc., is simple and easy to use. Remote Control Foot Warmer Heating Insoles for Hunting 1. Environmentally friendly materials: safe and environmentally friendly materials, the latest high-efficiency carbon fiber heaters. High-density, built-in safe 1900mAh Li-polymer battery. Circuits and batteries are protected by a steel case with high load-bearing capacity. 2. Temperature adjustment: high temperature mode 2-3.5 hours (53-60), medium temperature mode 3.5-5.5 hours (48-52) - low temperature mode 5.5-9 hours (40-50) (depending on environmental conditions). 3. Simple to use: wireless remote control for maximum comfort. 4. Cuttable: Can be cut to the right size, you can adjust the shoe size and trim the sole to meet your needs, ranging from 35-40 Euro size and 41-45 Euro size. 5. Keep Feet Warm: Solve foot discomfort in cold weather. Keeping you active during certain winter activities such as hunting, skiing, motorcycling, climbing or walking, etc., is simple and easy to use. Heated Insoles with Hunting Remote Foot Warmer Specifications: USB Charging Voltage: 3.0V-4.2V Battery Capacity: 1900mAh Input: AC/100-240V, 40-60HZ Output: 4.2V-5V Service Life: More than 500 Cycles Code Quantity : S code: 35-40 Euro code, L code: 41-45 Euro code. Packing list: 1 pair of insoles 1* remote control 1* charging cable 1* manual