The MUYA GT67 is a wire/cable tracer kit consisting of a tone generator and an inductive probe, used to locate and identify a specific telephone, network (RJ11/RJ45), or low-voltage cable among a bundle or trace it behind a wall. It also checks basic line conditions such as continuity, line voltage, and short circuits, helping installers avoid cutting or connecting to the wrong cable. It's a practical tool for structured cabling and telecom installation work.