Fourheart Rechargeable/Reusable Hand Warmers, 5200mAh USB Electric Hand Warmer Pocket Hand Warmers/Portable Battery Charger, Best Gift for Women and Men in Cold Winter PORTABLE: Cobbles hand warmer and spare power bank(When needed) Two-in-one. Handy carrying anywhere with any pocket or bag while sporting, fishing, hiking, camping, skiing. a perfect solution in cold weather HAND WARMER: Double side heating and 3 temperature settings: 107F(42C)/118F(48C)/131F(55C). Warm your hands in 3 seconds. Easy turn warming on and off, warming will automatically turn off after working for an hour to save battery(you can restart to use) LARGE CAPACITY: 5200mAh capacity can give a full charge to mainstream digital devices on market, for iPhone 8/7/6s Plus, Samsung Galaxy and other Android phone. 3 indicator lights keep you informed of the remaining battery and heating status USE MORE SAFELY: Made of high-tech aircraft-grade aluminum and ABS matrial, eco-friendly polymer battery. Shockproof, Anti-scald, Anti-skid, Explosion-proof, Radiation-free, Green and Healthy heat transfer WARRANTY: 45 days money-back & 2 years warranty, when you are not satisfied with our product, please don't hesitate to contact us. BUY WITH CONFIDENCE