The Ocoopa UT3053 hand warmer is a compact and lightweight device that provides comfort on cold days. With a battery capacity of 2500 mAh in a single warmer (5000 mAh total with two devices), you can enjoy warmth for about 4 hours on a single charge. It's perfect for travel, in a coat or jacket pocket, and its magnetic design allows two heaters to be combined for easy transport and storage.
