Features: 1.2 in 1 Design: This network cable tester integrates the test functions of network cable and telephone line, users can complete multiple test tasks with only one device, which is convenient and practical. 2.Supported Cable Type: This line detector is suitable for RJ45 and RJ11 network cable, including 8P 6P and 4P, wide range of application. 3.Fault Diagnosis: This telephone line tester can not only test the connectivity, but also detect the fault cause of the network cable and telephone line connection, which effectively improves the fault diagnosis efficiency. 4.LED Indicator: This network tester is designed with LED indicator that can clearly display the test results, and the user can get to know the connection quality of the network connection and phone line. 5.Portable Size: This telephone line tester has a portable design, light weight, small size, easy to carry and use, suitable for office or outdoor maintenance, very convenient. specification:Item Type: Network Cable Tester Material: ABS Supported Cable Type: RJ45+RJ11 (8P/6P/4P) Battery Type: 2 x AAA Battery (Battery Not Included) PackageList:1 x Network Cable Tester 1 x User Manual