Steelman 06606 ChassisEAR/EngineEAR Combination Kit 6 color coded, clamps with ultrasensitive piezoelectric sound pickups to attach to the problem areas with 16 ft. wire leads that can reach most location on vehicles Professional noise-cancelling headphones to block out surrounding environmental noise to help isolate the problematic issue Electronic stethoscope with included metal sound probe allows user to pinpoint mechanical issues with accuracy Clamp the six sensors on to springs, torque rods, shocks, body mounts, brakes, dash assembly, door hinges, drive train, rear or front axle, transmission, transfer case, suspension, sway bars, tie rod ends, struts, axle hubs, ring and pinion bearings etc. Stethoscope includes a decibel meter with 7 sound level control settings from 60 db. to 120 db.