The unique design allows you to combine two ducks shaped hand warmers into a large, or use it separately to share warmth with others Suitable for couples and friend to share warm during outdoor activities Make of ABS, aluminum alloy, and silicone, it has a soft and enduring touch to carry, it can be used as both a practical tool and a fashionable ornament on the desktop Whether it ' s on a golf course, fishing, commuting, or in, this hand warmer flexible heating option Suitable for outdoor explorers and daily users, solving the heating problem in cold weather and adding warmth and comfort to life Equipped with interfaces for fast and charging Built in 3000mAh battery ensures use without frequent charging, especially suitable for long-term outdoor activities or travel Provide three temperature settings of 45 ° C, 50 ° C, and 55 ° C to meet the warmth needs of different environments