Ultrasonic and Infrared virtual pressure operation technology Sampling Frequency: 60 KHz Sensor: 2pcs (Left, Right) Infrared Sensor: 1pcs (built in left sensor) Power: USB 5V/100m A Data acquisition chips (built in left senor) Core CPU 32bit 64K Flash memory UDP (Ultrasonic digital processor) 2 OP-AMP adapters Writing pen: Ultrasonic transmission sensor, 40KHz pressure film With USB charging cable (70cm) Size(HxDia): 130x15 mm PartItemDescriptionReceiversensorEffectiveworkingarea100inches(Ideally120inches)TechnologyIR+UltrasoundtechnologyUSBDeviceClassMicrosoftStandardpendeviceSamplingfrequency70KhzNo.ofreceivingsensors2unitsIRreceivingsensor1unitPowerUSB5Volt/100mADigitalpenPower3.7V/180mAHBatteryRechargeableRi-polymerbatteryRechargingterminalEarphonetypedrechargeablejackButton2buttons.Leftbutton,eraserbuttonBatterymonitoring2stepLEDIndicatorFullrechargingtime1hourContinuouspenoperatingtime20hoursowersavingmodeAutomaticpowersavingmodeafter30secidletimeUSBrechargingcableUSB+EarphonetypedJack(70cm)Dimension(HeightxDiameter)130mmx15mmInterfaceComputerIBMPC/ATorIBMPCcompatible(withCD-ROMdrive)CPUIntelPentiumoraboveorIntelCPUcompatibleTYPEInterfaceUSB2.0fullspeedorUSB1,1OperatingsystemWindowsXP/VISTA/Windows7RAM512MBormoreEnvironmentHumidity0-90RH+35ºC(Noncondensing)Recommendedoperatingtemperature10ºto+40ºCPenOnPCCalibrationSWBundledSWInkNoteWindowJournal(forWindowsXP/Vista/7HomeBasicEdition)PortableBoardBoardsoftwareSelectionPentype/Line/Thickness/EraserDrawing/Ruler/Backgroundtemplates/Snapshot/PrintMulti-page/windowsnavigationCurtainhiding/Magnify/Recordingandmanyothers High Performance: --Adopting dedicated ASIC chipset --Fast response time --High sensitivity for pen movement --High resolution --No jittering Excellent writing quality: --The smooth writing & touch feel --Brush effects without programming --Virtual pressure featur --Minimizing eye-strain --The state-of-art noise filtering High Usability: --100 inches working area --The most cost-effective solution --High durability --Fully compatible with MS standard --Bundled powerful board software --Rechargeable pen --Contents recording & playback