[Large Capacity and Fast Charging]10000mAh rechargeable hand warmer with charging port to ensure long-term use. It can also be used as a backup power bank with dual output ports (USB: 5V/2A), supporting simultaneous charging of mobile devices. The built-in LED screen reminds you of the remaining power and heating status. [Excellent Safety]Made of high-quality aluminum alloy and flame-retardant PC material, environmentally friendly polymer lithium battery. Its built-in intelligent protection system provides effective protection. Anti-shock, anti-scalding, anti-skid, explosion-proof. Completely safe heat transfer. [Single-sided/double-sided quick heating] Carry it with you, don't let it go Keep your hands warm against cold weather with the quick-heating rechargeable portable hand warmer. Gives you a powerful 118-131 (45-60) for 4-5 hours at room temperature. Press the switch to instantly release warmth for you. You can choose single-sided/double-sided heating to meet your different needs. [Portable and convenient]Rechargeable hand warmer, pocket size, skin-friendly material surface, easy to hold with one hand (size: 92*71*30MM, weight: 200g). Comes with a beautiful gift box, designed for travel, fishing, hiking, camping, skiing, biking, mountaineering and more. Especially suitable for outdoor or indoor activities. Size: 95*70mm Colour: Black Packing list: 1pcs