Large Portable Rechargeable Handwarmer - Includes BatteryBE WARM TO THE CORE Rechargeable Hand Warmers by THAW are a critical accessory to have on you when you're facing the harsh reality of the elements. This USB C rechargeable, portable device will keep you warm whether you're high up in the mountains hitting the slopes or simply out for a walk in the middle of winter. The dual purpose USB C rechargeable Hand Warmer and Power Bank by THAW comes in two sizes (small or large) and is built to keep you warm