MrsRose Ultra Thin Rechargeable Hand Warmers 2 Pack with Carabiner Ring Electric Warmers, NTC Safety Control, 3 Heat Levels, Up to 7H Heating, Lightweight 55g, Winter Gifts for Christmas

ULTRA THIN POCKET HAND WARMERS WITH CARABINER RING: Measuring only 15mm thin and weighing just 55g each, these compact rechargeable hand warmers easily fit into pockets, gloves or bags. The convenient carabiner ring allows easy attachment to backpacks, keys or outdoor gear for hands-free carrying. SMART NTC TEMPERATURE CONTROL FOR SAFE HEATING: Built-in NTC sensors monitor temperature in real time and automatically adjust heat output for stable warmth. The integrated safety protection helps prevent overheating during everyday use. 3 HEAT SETTINGS FOR CUSTOMIZED WARMTH: Choose from three adjustable heat levels: 37-42°C, 43-47°C and 48-52°C. Easily switch settings with one button to find your ideal warmth for commuting, walking, travel and outdoor activities. UP TO 7H HEATING & USB-C RECHARGEABLE DESIGN: Powered by a 2000mAh rechargeable battery per unit, each warmer delivers up to 7 hours of heating on the lowest setting. The included dual USB-C charging cable allows convenient charging of both warmers at the same time. PRACTICAL WINTER GIFT CHOICE: Includes 2 rechargeable hand warmers, 1 dual USB-C charging cable and user manual. A thoughtful winter gift for Christmas, commuting, dog walking, hiking, camping and everyday cold weather use.