RELIABLE ALL-DAY HEATING: With its sturdy battery system, these hand warmers provide consistent heat for hours and are ideal for freezing mornings and nightly events. Enjoy your personal pleasure or share the calming warmth with family and friends to expand your kindness. Reliable insulation keeps you warm all day long SMART MAGNETIC CHARGING DESIGN: Adopts magnetic charging with automatic alignment. Provides fast and secure connections and reduces port wear Provides enough warmth for camping and night walks ADJUSTABLE HEAT SETTINGS: These rechargeable hand warmers incorporate a smart chip and have a temperature setting of 45 degrees, 50 degrees, and 55 degrees, which will quickly heat up and provide stable warmth in about 30 seconds. Provides ideal performance in sub-freezing environments such as outdoor enthusiasts and commuters to maintain a comfortable warmth. Portable and suitable for a variety of occasions Split Share Function: The electric hand warmer adopts a magnetic double body design that combines two units to provide maximum warmth and can be easily shared when used separately. Seamless switching allows for increased comfort during a variety of activities, such as traveling, outdoor sports, or relaxing at home in a cold day. Ideal for use in groups to share warmth and flexibility in a variety of occasions. Whether you are outdoors or indoors, you can adjust the warmth when you need it PORTABLE AND COMFORTABLE: The hand warmer is lightweight and ergonomic design fits comfortably in your hand and is easy to carry and use at any time. It fits neatly in your coat pocket, so you can quickly get warm on the cold commute or outdoor adventures