Electronic Stethoscope Kit Mechanic Noise Malfunction Diagnostic Tools The items you ordered will be shipped out in 1-2 business day from Los AngelesCA. And you will receive it in one week. This is the ideal tool kit for all mechanics, electricians, engineers and breakdown service specialists, this top noch top quality Electronic Stethoscope Kit will effectively locates trouble spots within the engine block. This super sensitive electronic stethoscope has been specifically designed to identify the source of engine noise and faults in engine, transmission/worn gears, fuel injectors, fuel pumps, cat intake, exhaust manifold, valves, radiators, dashboard rattles and squeaks , Just like a heart beat this Stethoscope diagnose the noise in seconds!! making it super!!super!! essential.. This is an indispensable kit for any breakdown service specialist as it allows the vehicle to be road-tested and diagnosed simultaneously. Suitable for all mechanics and in the automotive industry.