Lisle 52750 Stethoscope Kit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Drake off road tools dual purpose set detects both mechanical and air induced sounds</li><li>For air induced sounds， attach the vinyl hose to the hollow tube and funnel assembly</li><li>The funnel amplifier will detect noises from vacuum leaks， exhaust leaks， air leaks and wind noise</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41%2BoshO-N3L.jpg" noproxy>