A ghetto blaster.
ghetto blaster definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Slang a large, powerful, portable radio and tape player: so called because of its popularity in inner-city ghettos: a mildly offensive term
ghetto blaster definition by American Heritage Dictionary
A boom box.