Tone & Probe PRO KitIncludes a professional grade tone generator and tracing probe for non-active wiringToner-Pro features 5 distinct tone cadencesRugged Angled Bed of Nails (ABN) clips securely attach to wiresRJ11 plug easily connects to telephone and RJ45 data jacks to tone wire pairToner-Pro tests for continuity and polarity with results indicated by clearly labeled LEDsProbe-Pro features 3.5 mm headphone jack for noisy environments (headphones not included)Responsive probe with durable non-metallic, replaceable conductive tip (VDV999-068) - sold separatelyWork light on probe tip for use in dark spacesTerminal block on probe to confirm the toned pairEach tool includes 4X AAA batteriesCustom, padded, divided, zipper pouch for convenient storage (VDV770-500) included with kit