PERFECT GIFT IN WINTER: It's a great gift for your parents, kids, friends, family, girlfriend and anyone you cared about on Christmas, Birthday, Thanks Giving Day, Valentine’s Day in cold winter. LARGE BATTERY CAPACITY: 2-pack 5000mAh rechargeable battery ensures a long using time. It can also be used as a power bank to charge your electronic device at any time. 3 DIFFERENT HEAT SETTINGS: There are 3 temperature settings of 40℃~45℃(low) / 45℃~50℃ (mid) / 50℃~55℃ (high) to meet your different choice, keeping your hands warming 4-7 hours per pack after fully charged. RECHARGEABLE HAND WARMERS & POWER BANK 2-in-1: It's not only hand warmers but also an emergency backup battery. It's easy to carry to anywhere you like or put into any pocket or bag while outdoor sporting, hunting, fishing, hiking, camping, skiing or walking. SPLIT-MAGNETIC DESIGN: Every hand warmer designed with one side for heating, one side for magnetic suction. They can be used separately or synthesized into one.