The hand warmers have 2 units with a total capacity of 10000mAh, ensuring your hands remain comfortable during outdoor activities. These rechargeable hand warmers can also serve as power banks, allowing you to charge your mobile phones and other electronic devices during your travels! With the LED display screen, you can conveniently check the remaining battery power and heating power at any time, no longer worrying about the battery level Ultra-light, ultra-thin: Comfortably fit in your pocket! It is only 2.8 centimeters thick and weighs only 65 grams, and can be seamlessly placed in gloves or pockets. You will hardly notice its existence until you need extra warmth. Double-click the power button to turn on the flashlight function. Click the power button to switch the lights and you can switch between three light modes. It is also very convenient to use at night Try out our electric hand warmer, which is rechargeable and has three adjustable temperatures. It can be used for single-sided and double-sided heating (104F/122F/131F). Whether you are on a cold outdoor adventure or need a little extra warmth during daily activities, our electric hand warmer is your perfect companion, providing you with a customized heating experience at your fingertips Feel the comfortable heat in just a few seconds! Get instant warmth in just 5 seconds! Charge for 4 hours and enjoy reliable heat for 4.5 to 12 hours, making it the perfect choice for long trips or outdoor adventures This cold winter, whether you enjoy hunting, playing golf, fishing, hiking, camping or skiing, these usb charging hand warmers are perfect pocket-sized companions and thoughtful Christmas gifts for your family and friends, ensuring comfort in the cold weather Color: Black/Green/Orange Size :10*5*2.8cm Battery capacity: 10000mAh Package: 2 hand warmers + instruction manual + charging cable + gift box + cloth bag