[Practical to Use: ] For testing your Ethernet patch cords or phone lines to they are in working condition before being connected to your equipment. [Testing Tool: ] Cable tester for RJ11 phone lines and RJ45 LAN cables to find faulty shorts, opens, crossed pairs and other wiring mishaps. [Convenient to Use: ] Automatically runs and checks continuity, LED status display. Slow and fast test switching. Compact size, handheld and portable. [Multipurpose] cable tester has remote detection, flexible and versatile split design. Tests up to 500m/1640.4ft of cable. [Application: ] Support 8P/6P/4P and other of network cable telephone line. Applicable for RJ45 RJ11 RJ12 CAT5 CAT6 CAT7 CAT8. color:Black Material:plastic Package Contents: 1 x Network Cable Tester Only 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.