•  THE BEST GIFT IDEA FOR 2023! - Still looking for the most impressive gift for your friends or families in this winter? Stop and choose KROSA rechargeable hand warmer ! Recommended as the best winter gift by hundreds of major websites like Yahoo, Business Journal and etc., it will make the one who get it think of you immediately using it in this chilly winter.
• ATTENTION! YOU'RE THE PIONEER IN THIS BATTERY REVOLUTION! - As the FIRST ONE using the LFP battery in the market, KROSA usb hand warmers will bring you the unmatched security in this new era. In comparison to other brands' ones, our LFP battery hand warmer has the better thermal and chemical stability which will NEVER put you at the risk of leak or explosion. With nearly 0 capacity loss even over 500 cycles, its long lifetime lets you tighten your purse strings to avoid cost on the replacement.
• SPEND LESS, GET MORE = 3S INSTANT HEAT, 10H RUNTIME & 3 HEATING LEVELS! - Owing to the double-side quick heating tech, KROSA rechargeable hand warmers can warm up your cold digits of both hands simultaneously in just 3s. You can be kept toasty warm up to 10H with the 6000mAh battery capacity it configured. Three heat levels(95-107.6℉,104-118.4℉,118.4-131℉) also allow you to make your way to the outdoors in the coldest days and set your desired temperature in different environments.
• YOUR FEELINGS ARE ALWAYS OUR PRIORITY = OFFER YOU THE GREATEST EXPERIENCE! - Tested hundreds of reusable hand warmers in different shape and even tried a variety of knife handles as reference, we finally polished this pocket heater into a sleek slender body only for providing you with the most comfortable grip that will reduce your fatigue in the long term use. With the unique elastic straps, the children or seniors can hang it on the wrist to prevent losing it or free hands to do other things.

Shipping Note: Shipping to Alaska, Hawaii, P.O. Boxes, and APO addresses is not available for this item

Warranty: 90 Day Woot Limited Warranty