1. Can test 4 kinds of Cable. Simple one-key test2. Test the installed cables or jumpers. The remote component is placed in the host3. Can test USB/RJ11/RJ45/BNC Cable4. It has the functions of automatic scanning and testing of network cables, checking the correctness of jumpers, short circuits, short circuits and the sequence of core wires5. Built-in battery device port. Bright and clear LED lights show connection and failure. The buzzer provides audible test results.size:162 x 85 x 25mmMaterial:plasticcolour:whitePackage Contents:1 x Cable TesterOnly the above package content, other products are not included.Note: Light 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.