STEELMAN PRO 91927 SmartEAR 1 Sound and Vibration Detection Kit VIBRATION SENSOR CLAMP - Vibration sensor clamp with 16-foot cord provides the ability to detect surface vibrations produced by moving internal parts STETHOSCOPE PROBE - Aluminum probe works with the detachable sound wand as an electronic stethoscope for hands-on diagnostics EARBUD HEADPHONES - 3.5mm earbud style headphones feature a braided wire jacket to eliminate possible stretching / tearing of the plug wires TWO CONNECTORS - Kit includes both a dual pin dongle with a sliding 3.5mm plug to fit a range of smart devices and a 3.5mm dual port connector FREE SOFTWARE - Free downloadable software from Google Play and Apple iTunes stores and works on a range of Android and iPhone / iPad devices APP FEATURES - App displays sound level readings including average, peak, and real-time values and shows results on screen as analog meter or digital readout STORAGE POUCH - Comes with a nylon zipper secured pouch for easy storage of hardware components