Feature●1 button control: Long press the power button for 3 seconds, hand warmer mode → short press button → switch temperature level → long press for 3 seconds → OFF, low temperature mode (47 - 52 °C): 12 hours of continuous use ● High temperature mode (55 - 60 °C): 10 hours of continuous use depending on the cold, you can easily adjust the temperature and warm your hands and feet in cold winter●【Portable and Compact】The smooth appearance of the curve is more suitable for your hands. The handwarmer is small and lightweight and easy to carry, and it takes up little space in your makeup bag, outdoor backpack, or pocket●【Cold and Warm Comfortable】Lightweight and comfortable to put in your hand or parka pocket, keep you comfortable on cold mornings and cold days●(Suitable for Hands) The durable and silky thermal capsule is made of safe ABS plastic and aluminum alloy frame, coated with mild silicone, making it feel like the warm winter sun●【CUTE AND STYLISH】:Mini hand warmer has a novel look, cute and charming duck shape will stand out. If you need this stylish hand warmer in the winter, please take action as soon as possibleDescription Rechargeable Cairo Cute Electric Heater Rechargeable Electric Hand Warmer Cute Duck Hand Warmer 4000mAh Small Lightweight Fast Heat Charging Hand Warmer for Golf, Skating, Skiing