Features: Keep warm with this portable hand warmer, perfect for outdoor activities or chilly regions. Experience continuous warmth with double sided heating and an ergonomic designs that fit comfortably in your hand. Suitable for both men and women, this hand warmer is great for those who need warmth during outdoor adventure or in cold areas. Whether you're hiking, working outdoors, or exploring nature, this hand warmer is a must have for long lasting warmth and comfort. Smaller and more portable than power banks. This large power hand warmer with 3600mAh capacity battery charge your phone any where. Smooth and warm surface, palms-size, curvy body and ergonomic designs. It is just a easy to hold and comfortable hand warmer. Portable and lightweight, USB charging, multifunctional use, safe and reliable, dynamic charcoal atmospheres light, three temperature adjustable, real-time digital display at 40°C, 50°C, and 60°C; Specifications: Material:ABS+Aluminum Alloy Battery Capacity:3600mAh Temperature: 40°C, 50°C, and 60°C; Input:5V2A Color:Green,White,Black;(Optional) Package Includes: 1xUSB Hand Warmer note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.