... / C / OFF three switches;Reset button;battery volume buttonBattery7800mAH/6600mAH ,built-in polymer lithium ion batteryLEDscharging,battery volume,statusexternal 3G modemsupported, WCDMA, CDMA-EVDO ... ;bandwith frequency:20MHz,40MHz,auto;Wireless Mode:11n only,11 bgn mixed,11 bg mixed,11g only,11b only;working modeAP mode3G ...