Features: Useful device:This network cable tester is designed to test the network cable and detect a fault and is easy to use Convenient to use:This network cable testing device is designed with RJ45 and RJ11 ports and is suitable for most types of LAN network cable Portable:This network RJ45 RJ11 wire tester is small and compact,and won't take much space,so you can easily carry or store it Suitable places:This RJ45 cable diagnose device is a good fit for home,office,hotel,school and any place that needs a network connection Specification: Name:telephone line tester Interface:RJ11/RJ45 Material:PS shell+chip Weight:about 90g Size:102*101*27MM Function:Shielded/non-shielded Shielded/non-shielded cable,telephone line high-precision testing Package Includes: 1*Phone line tester Note: Only include the above package products Cables are not included,the cables in the picture are only used to illustrate the products Specifications are measured manually for reference only Please refer to the actual condition