The GreenHeat Hand Warmer is an eco-friendly, rechargeable electronic solution to cold hands. No more disposable hand warmers littering the mountainside! Thermal conductive aluminum shell with an internal thermostatic controller keeps its shell surface temperature constant. Short circuit, over charge and over discharge protection. Temperature Setting: Low 107 F & High 118 F. Assorted Colors.
Power supply: rechargeable micro USB 5V/4400mAh
Multifunctional design also works as portable mobile phone charger.
Temperature Setting: Low 107 Degree F & High 118 Degree F
Over Charge, Over Discharge, and Short Circuit Protections
Standard use time: 4-5 hours
Product Weight: 0.40 lb(s).