... working length:1m,2m,3m,5m Video flexible endoscope with 3.5 inch color TFT LCD Monitor Features: Function:photo,video,memory ... ,audio record,etc.3.5" TFT LCD MonitorLens: 10mm (5.5mm,8.5mm Optional)Removable Tube Dia:6 ... -6 hours)Portable Industrial Endoscope with 3.5 inch color TFT LCD Monitor specifications:Specification(Body part)3.5" TFT LCD Screen(QVGA 320 ...