A set of hand warmers with two symmetrical designs, connected by snap fasteners. Equipped with intelligent chips, it can achieve 5 levels of temperature regulation, with a maximum temperature of 55 degrees Celsius, and can adapt to different insulation needs. Adopting a lightweight design, with a single thickness of only 1.12cm and a weight of 66.4g, it is palm sized and can be easily placed in a pocket 2-in-1 Design: Two rechargeable electric hand warmers can be combined for all-around warmth for both hands. They can also be used individually, allowing you to share warmth with others. The buckle structure is stable, saving space when stored together, making it more convenient to carry when going out. These hand warmers can be easily placed in hats, gloves, pockets, etc., ideal for outdoor activities Long-lasting Battery Life: Each battery has 3000mAh, with a battery life of 8-20 hours, meeting the needs for all-day outdoor activities. Equipped with a Type-C charging port, it can be fully charged in just 3-4 hours, and comes with a Type-C charging cable, eliminating the need for additional accessories. The LED screen clearly displays battery level and temperature, preventing low battery anxiety Ultimate Portability - Each hand warmer weighs only 66.4g (about 30% lighter than traditional hand warmers), palm-sized dimensions (3.78x1.33x0.88in), slim body design, suitable for various scenarios such as commuting, skiing, golfing, walking dogs, and office use, it can provide warmth anytime whether indoors or outdoors Ultimate Portability - Each hand warmer weighs only 66.4g (about 30% lighter than traditional hand warmers), palm-sized dimensions (3.78x1.33x0.88in), slim body design, easy to fit into pockets, gloves, hat edges, and other small spaces without adding carrying burden. Suitable for various scenarios such as commuting, skiing, golfing, walking dogs, and office use, it can provide warmth anytime whether indoors or outdoors Warm-Hearted Holiday gift: Beautifully packaged, these reusable hand warmers combine practicality and emotional value, making them an excellent choice for Thanksgiving, Christmas, and other holiday gifts. They provide continuous warmth for family and friends during work, study, and outdoor activities in the cold winter, conveying heartfelt care.