XUEMEI Digital Display 3 Heating Levels 4 LED Display The electric hand warmer has a digital screen that shows the heating temperature and the temperature control in 3 levels [104], [122 ], [140 ]Big Battery Real Convenience 1000mAh super-large electric hand warmer USB powerbank 2-in-1, with USB type C / USB output / micro-USB charging port, compatible with Android and iOS mobile phones. It easily charges any phone or tablet and brings you warmth and energy too Smooth and double-sided warm surface, pocket size, curvy body, smooth and light, corner protection against drops. It is just all you need.just press the switch and give off the heat for you immediately. The double-sided heating area is larger than others, wrap your entire hands and get to temperature quickly. Hand warmer powerbank Adopted Tesla battery with the same power, along with several protection technologies that include inrush, short circuit and overload protection, etc.Long-Lasting Warm Than Others The huge battery capacity of 10000mAh brings a longer battery life and the heating time of up to 14hours brings you a free outdoor driving experience without having to worry about the cold. with maximum energy and minimum weight gain. The electric pocket warmer is ideal for long outdoor activities such as jogging, golfing, fishing or camping, hunting, skiing, climbing, hiking.Perfect Winter Gifts The hand warmer USB with an exquisite gift box, a MUST winter gift for your friends and family. The hand warmer can be used as a power bank, you can use it to charge your phone. It's a great phone charger for outdoor sports like skiing, hiking, and for Raynaud's arthritis patients who need heat therapy.[Product use time]: low temperature: about 12 hours, high temperature: about 7 hours, constant temperature: about 8 hours[Product charging time]: about 4 hoursSIZE11.46.63.6cmColour: BlackGift box with 1 * hand warmer, 1 * USB cable.1* Sling