Who made the first boombox?

i think the boombox was creatated in the late 1970 because the booomboxs are very old and expencive know so they are alot of money and i also think a young inventor or entrapanour invented the boombox the boombox is just like a radio but easer to carry and to play music and easier to play music with the radio know a day because its just one push of button 5th grade studen wrote this