Our article: Why invest in a TESLONG endoscope?

 The TESLONG NTG200H 26-inch Folding Endoscope is an ideal gunsmith's tool for checking how well your rifle barrel has been cleaned. Carbon deposits accumulate with each shot and can degrade your accuracy. This endoscope helps you see deposits in the grooves and rifling, making it an invaluable aid when cleaning your barrel.

 Record or play back live images on your Android mobile device, PC and Macbook

 For Android smartphones

 We recommend these apps:
 • Endoscope Camera.apk - Developed by Teslong
 • USB Camera - Third-party software, recommended by customers for better compatibility

 For Windows PCs

 We recommend these apps:
 • The Windows webcam application called “Camera” - it’s plug & play!
 • USB Camera - Third-party software, recommended by customers for better compatibility

 For Win 10, there is built-in camera software available; search for "camera" in Windows to find it.

 MacBook and Chromebook

 Both have built-in camera software. Plug and play!