The Goldtool Tone Generator & Amplifier Probe(Buzzer Tone)is designed to identify and trace wires or cables within a group without damaging the insulation. Works with any tone generator to identify wires. This heavy-duty kit with audible tone easily identifies wires or cables. The insulated inductive probe tip prevents shorting conductors. Tests include a wire trace, continuity test, clear/busy/ringing line test, and tip/ring identification. This product features alligator clips for non-terminated cables, and modular connectors for direct connections to telephone and internet wiring. It also has selectable continuous or variable tone generation, as well as a built-in speaker on probe Volume control for increased sensitivity and adjustable to suit work environment.