OSS Tail Plug Tester T7 Non Dismantling Second Test Tail Plug Cable for Lightning/TYPE-C for IOS Android Universal When testing the continuity of the internal wiring of the phone's charging port, if the internal circuit is normal, the corresponding light will be on; conversely, if the internal circuit is disconnected, the corresponding light will be offConvenient non-disassembly inspection, precise fault localization, efficient troubleshooting, and immediate identificationColor: BlackMaterial: PlasticPackage Contents:1*Tail Plug TesterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.