OCOOPA Hand Warmers, 1-Pack Hand Warmer Rechargeable, Electronic Pocket Heater, 5200mAh Power Bank Portable, Heat Therapy Great for Raynauds Sufferers Pain Relief, Best Tech Gifts by Amazon.co.uk

• Exquisite comfort - Made of high-tech aircraft-grade aluminium and ABS material, thousands of polished exterior Material, Smooth and warm, portable and compact as well anti-skid in one hand

• Upgraded security - The optimized and upgraded Circuit ensures its long lifetime, providing protection against over discharging, over charging, overheat, and short circuit

• Fast heating & 3 levels - press the switch and instantly release the warmth for you. Hand warmers can rapidly warm up double sides in seconds. 3 levels of temperatures 95-107\xb0f/104-118\xb0f/118-131\xb0f at your choice

• 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 - It's a MUST HAVE to spend a cold winter, especially for Raynaud's arthritis sufferers for heat therapy needs.