2-in-1 Hand Warmer (Power Bank) Color:Blue just plug the USB for

just plug the USB for charging & the battery is not needed

It is commonly used in households

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and any of your space

2-in-1 Hand Warmer (Power Bank) Color:Blue just plug the USB forSay Goodbye to Heavy Hand Warmer Battery operated hand warmers aren't a new thing. The issue is that old designs often worked poorly and sucked old fashioned batteries dry in hours. The old design was also quite heavy. That is why we designed this slim hand warmer. Warm Your Hand in 30 Seconds Our mini hand warmer is lightweight and perfect for your hands to get warm quickly in 30 seconds, thanks to the availability of three temperature modes, namely