Featurea SAVE TIME and MONEY - With an innovative close-focusing camera, this Teslong digital bore scope will help you inspect the inside of your barrel. This is a great tool to evaluate cleanline, throat erosion, tool marks, rifling wear, chamber damage and fouling. Ae your cleaning regimen or diagnose firearm problems to SAVE time and money!SHORTER FOR PISTOL BARRELS - The shortened version of Teslong NTG100H Borescope is more compact, making it easier to store and inspect barrels.FIT .20 CALIBER and LARGER - The 0.2-inch diameter probe allows easy entry into barrels as small as .20 caliber. The 10-inch-long rod is longer than most barrels so you do not need to switch from barrel to muzzle to fully inspect the bore.SIDE-VIEW MIRROR - This bore scope with 6 adjustable LED ring light, Come with Detachable 90 side-view mirror. You can check the barrel wall, or remove it to examine the firing point. Includes 3 mirrors in case you lose or break one!ANDROID, MAC,PC COMPATIBLE - Includes a 2-in-1 USB & Micro-USB plug and a Type-C adapter, so you can record, or play, live barrel images on your Android mobile device, PC computer, or MacBook (OSX). PLEASE NOTE This USB version DOES NOT WORK with iPhone or iPad (iOS). Teslong NTG100P USB Barrel Borescope Notice: This model does not support iPhone and iPad! Also not support Fire, Kindle.Designed For Pistol Barrel InspectionShort-Focus Camera and Side-View Mirror combine to provide clear barrel wall images5mm (0.2 inch) Diameter CameraIndustry leading 5mm (or 0.2inch) camera diameter , easy enter the pistol, fits .20 caliber and larger barrels.10 Inches Long Elastic CableProvide a enough view of the entire inside of the barrel.Photo and VideoImages can be captured and saved to your computer or smartphoneSoftware FunctionWindows 7/8/10 or later:1.[Windows Camera]The built-in Camera software of Windows10, only for Win10.2.[Endoscope camera] or [Amcap]Android 4.4+:[Endoscope camera], [CameraFi] or [USB Camera]For some Android devices, if there is nothing in the preview area, please get into Android Settings | Permiions | Storage Permiions | and enable Teslong CameraMac OSX 10.6+:[Photo Booth] or [QuickTime Player]