10400mAh large capacity, Cylindrical lithium-ion battery, Suitable for smart phones, iPod, iPad, Camera etc. Input: 5V 2A. Dual USB ports outputs: 5V/2.4A+5V/1A Intelligent IC Auto detect the Device requirement, Optimized charging/discharging efficiency: up to 90% conversion rate for 5V/2.4A and up to 86% for 5V/1A Overcharge & over-discharge protection,Input overvoltage protection & output overvoltage protection, Output current protection and short circuit protection. Small and beautiful, portable and convenient to use, Automatic power-off, Compliant with FCC,CE.Suitable for smart phones, iPod, iPad, Camera etc, Intelligent LED battery indicators. Package includes: 10400mAh Fast Charger External Battery,1 Short Micro USB charger cable.