• Energy Efficient Hand Warmer :Can choose single-sided heating, or double-sided heating according to your needs. Single-sided heating can save up to 50% of energy. 3 levels of temperatures 95-107°F/104-118°F/118-131°F at your choice.
• Ultimate Comfort:Made of high-tech aircraft-grade aluminum and ABS material, thousands of polished exterior material, smooth and warm, portable and compact as well anti-skid in one hand.
• Large Battery Capacity :5200 mAh lithium rechargeable battery with USB-C charging port ensures a long using time. It can also be used as a power bank to charge your electronic device at any time.
• Perfect Gift :a great tech gadgets to spend a cold winter, especially for raynauds arthritis sufferers for heat therapy needs.