A tuned acoustic attenuation device includes a housing defining a chamber within with air inlet and outlet channels opening into the chamber. The body-wearable device includes including a main body enclosure including a biometric signal sensor; a coupling member extending from the main body enclosure and coupling the main body enclosure to a user’s body; and a high-polymer actuator disposed in the coupling member, wherein, as the high-polymer actuator is driven, the biometric signal sensor closely contacts the user’s body. An extension pipe is connected to the underside of the cover and a plurality of outlet tubes extend from the extension pipe. The crude product is a liquid mixture at 25\xb0 C. After the user identifies a vehicle under test, the system retrieves vehicle data corresponding to the vehicle under test from the data storage device; and displays the image of the vehicle under test on the display with the predefined points on the vehicle identified.