... RS-232 ,USB2.0Packaging & Delivery Packaging Detail:PDA, Li-ion Battery,AC Adapter, USB Cable,User Manual,Stylus Pen ... Panel Analog resistance typeKeypad22 buttonsStandard BatteryRechargeable, High Capacity Li-ion Battery,7.4V 3000mAh Operation Battery Life10 hoursT-flash ... length-58mm,>8m,dia-18mmExtended BatteryRechargeable, High Capacity Li-ion Battery,3.7V 3000mAh(optional)Camera 3 megapixel ...