... working length:1m,2m,3m,5m Video flexible endoscope with 3.5 inch color TFT LCD Monitor Features: Function:photo,video,memory,audio ... -6 hours)Portable Industrial Endoscope with 3.5 inch color TFT LCD Monitor specifications:Specification(Body part)3.5" TFT LCD Screen(QVGA 320 x ... cover6DC in7Video out8USB interface (port)Accessories: Video flexible endoscope with 3.5 inch color TFT LCD Monitor