... with voive Easily used,convenient 1.Cable network tester with voice,can Test RJ45 and RJ11 network cables 2.Test correspondingly double-twisted ... , 5, 6, 7, 8 and Ground 3.Test RJ45 and RJ11 network cables4.Test correspondingly double-twisted cables 1, 2, 3, 4 ... 9V batteryUpdate Date:2011-3-29 19:07:43 Cable network tester with voice HOT!!!