STEELMAN 06600 ChassisEAR Electronic Squeak and Rattle Finder PINPOINT TROUBLING NOISES - Easily pinpoint troubling noises that cannot be duplicated in a repair stall and only occur during road driving MULTI-CHANNEL - Connect up to six (6) microphones to different under-chassis locations simultaneously to find a noise's source FULL HEADPHONES - Includes a set of full-coverage headphones to block out surrounding noise COLOR CODED LEADS - Each microphone / clamp is color coded for easy identification 16-FOOT CABLES - 16-foot long wire leads allow microphones to be positioned in difficult to reach places INCLUDED ACCESSORIES - Includes control unit, headphones, 6 wire-lead microphone clamps, clamp carrying case, 9-volt battery, and a blow-molded ABS plastic storage case