Endoscope Cam helps you to connect your camera usb or otg endoscope camera to your phone the endoscope app for android works like an otg view. open your external Borescope by USB otg read it the endoscope app need to use micro just to record video with sounds and need to use the gallery to write and read it pictures and videos check that before using this endoscope app: - if your device supports USB otg technology after open the app, choose in the setting USB otg checker to check if your device support otg or not - if Your USB camera is UVC-compatible the Borescope or endoscope has many things to do like in blocked drains you can see what inside You will not need camera drain unblocker or plumbing cam repair anymore. it works like a sewer camera Borescope or you can use it with any external camera like a webcam. * Check USB camera connected via OTG USB cable. * Easy Endoscope Camera Usb Otg