USB Otoscope is a free app, with the USB-OTG interface to connect the USB otoscope device with the smart phone. (USB otoscope product is applicable to ordinary examination on ear canal, nasal cavity, oral cavity, skin etc. It helps users to judge the disease preliminarily and do routine examination.) USB otoscope app support real time viewing, photo and video taking. It support delivering photos and video to RTMP real-time media server, and users can share video photos with their family, friends or family doctors in real time through Facebook, Instagram, WeChat, QQ and so on.