Nicelemon Electric Hand Warmers Rechargeable 2 Pack, Reusable Handwarmers, Portable Pocket Heater for Camping, Hunting, Golf, Gift for Men Women (Black)Nicelemon 2-in-1 hand warmer 2 packs, warms longer than before. Up to 12 hours of heat. Press and hold for 3 seconds for rapid heating. There are three levels to adjust according to your needs. Made..