Feature: 1. Visualized Power: The visualized power is more secure, one key operation, convenient and quick, let you feel the warmth of winter. 2. Large Capacity: Small body and large capacity, battery life for a whole day, one hand can hold, long lasting warmth, making you a little cute in your pocket. 3. Multifunctional: Multifunctional hand warmer, both hand warmer and power bank, compact and exquisite, can be carried with you without taking up too much space. 4. Ergonomic Design: Conform with ergonomics, comfortable and delicate hand feeling, the shape fits the natural curve, the appearance coating is delicately processed and the touch is soft. 5. Changeable Expressions: Moving hand warmers, portable emoticons, cute and changeable expressions, comfortable materials, both visual and tactile will give you double warmth. Specification: Item Type: Hand Warmers Material: ABS, PC, Silicone, Aluminum Alloy Size: Approx. 12 x 7.4cm / 4.7 x 2.9in Battery Type: Lithium Battery (Ship with Inbuilt Battery) Battery Capacity: 10000mAh Heating Temperature: First Level 45℃ / Second Level 55℃ Heating Time: 8-9 Hours in the First Level / 5-6 hours in the Second Level Function: It is a hand warmer and a power bank, small and exquisite, portable. Package List: 1 x Hand Warmers1 x USB Cable Note: Ship with Inbuilt Battery