We collected the most popular and quality endoscopes for different usage, which include Video Endoscope with Screens, USB Endoscopes which can be connected to Computer and Android Phones, Wireless Endoscope which can be connected to both PC and Mobile Phones. Those devices can be widely used for Cars, gun rifling machine or pipeline detections. Also some devices like Electron microscope and otoscopes can be used in educations, health checking and so on.