Portable digital hand warmer PEEPEE reusable hand warmer Heart-shaped/Egg/Oval warmer for Christmas Small, beartifulland fashionable. Easy to carry, using the "ON"/"OF" switch-mode anywhere and anytime to carry and use USB charging. Transferring heat by infra-red,and promoting blood circulation,accelerating metabolism. No electromagetic radiation and improving body immunity. High-performance batteries, smaller size, larger capacity, more protdction for the inviromnent,be recycled for 500 times.