IOGEAR GearJuice Mobile Pocket Power Pack Specifications Function GMP1001W6 Voltage 5.0V Output Connector USB Humidity 45-85% RHOperating Rang Reset Switch Yes Capacity 2000mAh Operating Temperature Charging: 0C ~ 45C ; Discharging: -20C ~ +60C Output Rating 5.0V @ 500mA, Max: 8W/H Storage Temperature -20~60C Battery Type Lithium Polymer NOTE - THIS ITEM CANNOT BE SHIPPED TO MASSACHUSETTS