This kit includes:
-Fox 2 Deluxe Tone Generator
-Hound 3 Probe Inductive Tracer
-Cordura Carrying Case

The FOX 2 and HOUND 3 wire tracing kit consists of a premium FOX 2 Tone Generator (Toner) and a newly designed HOUND 3 Inductive Amplifier (Probe). 
The FOX 2 is a battery operated handheld lightweight multi-function Toner that generates multiple tones, performes some basic telephone line tests (loop mA and line polarity), provides a visual and audible continuity test, and incorporates Triplett's True Trace and TripLatch Tests. 
The HOUND 3 is a battery operated handheld lightweight Probe, with a thumbwheel Sensitivity control and Signal Strength indicator LED.  It improves on previous designs with built-in LED illuminators, a bandpass filter, an earphone jack and an easy access battery cover.  An included convenient carrying case (with belt loop attachment) provides ease of use and protective storage for the FOX 2 and HOUND 3.

When used together, the FOX 2 and HOUND 3 aids in the identifying, locating, and tracing wires, cables, and other conductors.  When the FOX 2 is used to apply a "tone" to a wire, the HOUND 3 can usually locate the wire inside of, or behind electrically non-conductive surfaces (plastic, wood, drywall etc) up to 12 inches away.  The HOUND 3 does not have to contact a wire to identify it... i.e no stripping needed.  FOXs and HOUNDs have been used in the telephone, electrical, security, sound reinforcement, video, automotive and boating inductries, to name a few.