Features: Lightweight and Portable: Made of plastic shelland high quality batteries, very durable, compact and stylish. It has an absolutely excellent tactile feel. Ideal for indoor and outdoor use, easy to carry. 2-in-1 Multifunction: With a built-in 1200mAh/2400mAh battery, USB connection, this product is not only an electric hand warmer, but also a power bank. It can charge smartphones and tablets. Two adjustable temperature modes: This pocket hand warmer with 2 temperature modes (can heat up quickly in one second and will give you heat immediately. A great winter companion that always keeps your hands warm Perfect gift: The best gift idea in the cold winter. Ideal for family and friends, Christmas, New Years or winter, especially for scratch arthritis patients who need hyperthermia. Safe: Optimized circuitry extends the life of the pocket hand warmer and offers protection against over discharge, overcharging, overheating and short circuiting. Specification: Material: Plastic Size: approx. 8x7.5cm/3.14x2.95in Optional colors: Green/Pink/White Optional battery capacities: 1200mAh/2400 mAh Quantity: 1Pc Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Contents: 1xMini Hand Warmer(other accessories demo in the picture is not included.)