... Port Forwarding,DMZ,System Security,Content Filtering Interface:One power switch button,One reset button, One mini USB ... charge the battery),One SIM card slot Indicator:One power status LED,One charge status LED,One WiFi ... network status LED One 3G network status LED Power Supply:Lithium Battery ( 1500mA) Dimension:94mm× ... -20°C ~ +70°C Humidity:5% ~ 95% pocket 3G wireless router