HT660 Product Reference Guide6HT660 Model SpecificationModel HT660 BT HT660BT+RFRugged/EnvironmentDrop test 1.5M 1.5MIP 54 54Operating Temp. 0°C to 50°C 0°C to 50°CStorage Temp. -20°C to 60°C -20°C to 60°CHumidity 5%~95% non-condensing 5%~95% non-condensingESD ± 8 Contact~ ± 12 Air ± 8 Contact~ ± 12 AirKeypadsFull Alphanumeric 36 keys 36 keysPhysicalWeight (g) 360g w/ Battery 360g w/ BatteryDimension (LxWxH mm) 199.5x72.1x39.6mm 199.5x72.1x39.6mmPower supply &ManagementMain Battery Type 3.7V / 1950mAH Li-ion 3.7V / 1950mAH Li-ionBattery Recharging Time 4 hours 4 hoursBattery Life BT--> 12 hoursRF--> 8 hoursBT--> 12 hoursRF--> 8 hoursBackup Battery Type 120AH Li-polymer 120AH Li-polymerDisplaycolor ( Touch Panel 2.7") Included IncludedDisplay pixels 240x320 pixel 240x320 pixelDocking Station RS232/USB or Modem RS232/USB or ModemBarcode Scanner Reader Laser / CCD Laser / CCDSystem ArchitectureCPU Processor Intel PXA255 Intel PXA255Operating System Windows CE 5.0 Windows CE 5.0Flash ROM 64MB 64MBFlash RAM 64MB 64MBSpeaker Included IncludedCommunication Interface RS232 or USB RS232 or USBExpansion Memory SlotSD Slot Included IncludedRadio Options802.11b/g Not Included IncludedBluetooth Included Included