ghetto blaster
noun /ˈɡetəʊ blɑːstə(r)/
  /ˈɡetəʊ blæstər/
 (also boom box especially in North American English)
 (becoming old-fashioned, informal)- a large radio and CD or cassette player that can be carried around, especially to play loud music in public大型手提式收录机(或激光唱机)