Features: brand new and high quality Hand warmer and power bank are two-in-one, suitable for cold office work, cold classroom, sleeping, shopping, dog walking, traveling, camping, hiking or any outdoor activities in cold weather. This hand warmer is small in size and easy to carry. Easily put it in a briefcase, pocket, for palm size, and carry it with you. Double-sided fast heating, this rechargeable hand warmer is made of aluminum alloy and silicone materials, and it heats up quickly in 3 seconds.​​ Different from the traditional hand warmer, this one is double-sided heating, which will warm you all winter. Large capacity 3600mAh battery. It is both a hand warmer and a power bank. Anti-vibration, anti-scalding, non-slip, explosion-proof. It will bring you warmth throughout the winter. I believe you will fall in love with it and give her a warm gift. This hand warmer will warm your love and her hands. Specifications: Material: PC+Aluminum Alloy+Silicone Weight: 300g Size: 6.5x3x9cm/2.56x1.18x3.54inch Color: Blue/Pink Style: Regular/Induction Battery Capacity: 3600 mAh Hand Warming Time: 3-5 hours Charging Time: 4-8 hours Heating Temperature: 45°C at Low Temperature, 55°C at High Temperature Input Voltage: 5V-2A Output Voltage: 5V-1A Power: 5.5W Package Includes: 1x Hand Warmer note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.