... -485 portSelectable packing time for recording filesBuilt in 7 inch TFT monitor, convenient for operationMulti-Language selectableEnglish, Portuguese, Russian, Thai, ... ModeNormal play, fast forward, fast rewind, frame by frameBackupBackup Record file via USB flash disk, USB disk, USB CD/DVD-RW ... -10°C to +40°CWorking Humidity10% to 90% Professional LCD/DVR ,Standalone digital video recorder dvr