This multi-function device not only produces warmth instantly but it also serves as a dual USB port power bank capable of recharging up to 2 mobile devices FAST while on the go * Smart pulsating heat technology prevents double sided cores from overheating while distributing even heat throughout the unit * High capacity 6000mAh rechargable lithium-ion cell battery well capable of fully charging any smartphone within 2-3 hrs up to 2.5 times * Stylish & compact design constructed from high quality aluminum alloy casing, made easy & safe to carry around in your pocket * Package Includes: 3-in-1 Hand Warmer/Power Bank/LED Flashlight, SMART USB cable charger (wall charger adapter not included), Manual, 30 DAY RISK-FREE GUARANTEE