... Magnification Ratio: 25x~400x Factory Price Handheld 500X Digital Microscope with A/V interface Hand Held size , easy use A/V ... interface, can be connected with TV sets. Applications Medical: Skin , Intra-oral , Ear , Iris ... SMT in process quality control Beauty Shop : Hair & Skin inspection.Reading support : For the weak eyesight.Textile inspection.Specification Image Sensor ...