Pocket size with cobblestone design, easy to carry, warm your hands, and charge your phone in cold winter. Especially in outdoor activities like Skiing, Fishing, Hiking.A perfect gift in cold weather.

• 【USB Type-C Powerbank】Yeewell Dual-use electronic hand warmer built-in 5200mAh lithium-ion battery, which can support more smartphones.

• 【Comfort and Portable】Double-sided heating and three levels of heat options 100-113°F/113-126°F/135-148°F are perfect for cold weather. Rapidly warm-up double sides in 3 seconds, press the switch button, and instantly release the warmth for you.
• 【Warmth and Healthy】Awesome instant electronic hand warmers NOT ONLY cold hands relief BUT ALSO helps soothe the pain and uncomfortable of Menstrual, sufferers with arthritic hands and arthritis pain. These work GREAT! Easy to charge! Easy to understand how to use.

• 【Satisfaction Service】We provide quality products and stand behind our commits, plain and simple. If you have any issues with this product, even after the refund period, email or call our customer service team and we will be happy to assist you.