SystemRequirementsHardwareIBMPCorcompatiblePC,NotebookorMacintoshwithUSBportOperationSystemWindows98/98SE/Me/2000/XP，WindowvistaandLinux2.4/MacOS10.0aboveDriverinstallationOnlyrequiredforWindows98/SE FunctioncharacteristicsUSBInterfaceUSB2.0highspeedCapacity256M，512MB,1GB,2GB，4GB，8GB(Optional)StorageDeviceRemovableStorageDeviceCardtypeN/AA-BRepeatSupportRecordingMicrophoneRecording，FMRecording（OnlyforEM645JB）EQModeNormal,Rock,Pop,Classical,Soft,Jazz,Bass，UserEQ，SRSWOWSupportedLanguageSimpleChinese,TraditionalChinese,EnglishetcPlayModeNormal,Repeatone,Folder，RepeatFolder，Repeatall,Random，IntroFMRadioSupportVBRSupport TechnicalSpecificationReadspeedSLC:5.0~6.0MB/SMLC：3.5~4.0MB/SWritespeedSLC:4.0~5.0MB/SMLC:1.5~2.0MB/SAudioformatMP3，WMABitRateMP3,WMA:8Kbps 320KbpsRecordingLengthACT：1GBabout280hours（8Kbps/8KHz）FMFrequencyRange87.5-108MHz/76-90MHz（NormalBand/JapanBand）（OnlyforEM645JB）FMScanModeManual/AutomaticSearch（OnlyforEM645JB）NumberofPresetChannels20（OnlyforEM645JB）BatteryLife6-8HoursLCDDisplay128x64SNR90dBaboveFrequencyResponseRange20HZ 20KHZRecordformatMICREC：ACT（8Kbps/8KHz）FMREC：WAV(32Kbps/8KHz) PhysicalcharacteristicsBatteryTypeRechargeableLi-polymerbatteryStorageTemp*-20℃~+55℃AmbientTemp*-10℃~+55℃OperationRelativeHumidity*20%～90%（40℃）StorageRelativeHumidity*20%～93%（40℃）Size（mm）L*W*H:70.6x28x13（mm）Weight（g）About18.8gColorblue,redPackageBlisterpackage,colorbox