STEELMAN Mini EngineEAR is a unique diagnostic listening device specifically designed to pin-point squeaks, rattles and any other troublesome noises in faulty fuel Injectors, bearings, gears, suspension components, transmissions, and differential/CV joints. Sensor clamp helps to detect noises during test drives that can not be duplicated in the work bay. Sensor tip mounted on 6-inch flexible shaft allows access to hard-to-reach areas. 5-inch inductive metal probe allows user to pin-point source of noise and vibration. Ultra sensitive microphone provides a full range of sound. Rotary volume control allows user to easily adjust sound level. Earbud style earphones provide excellent sound quality.