Rechargeable Hand Warmer Power Bank

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. Pebble-shaped hand warmer & power bank 2-in-1. Handy carrying anywhere with any pocket or bag while sporting, fishing, hiking, camping, skiing. a perfect solution in cold weather. 5200mAh capacity can give a full charge to mainstream digital devices on market, for Apple Phone 8/7/6s Plus, Samsung Galaxy, Nexus and other Android phone. 3 indicator lights keep you informed of the remaining battery and heating status.