As much as we love winter, we surely don't want to freeze in the cold. Enjoy this chilly season while staying warm with this Cozy Palm Rechargeable Hand Warmer. This handheld device comes with a double-sided warmth for uniform heating and 3 temperature settings for more options to choose from. It is also equipped with 5-second rapid heating and auto-shutoff that makes it convenient to use. This warmer also uses a USB rechargeable 5200mAh polymer lithium battery which can double as a power bank. One-click to activate the power bank function and long press to initiate the warmth.