Consumer electronics, especially in the field of music has come a long way. 25 years ago was a music store in 12-inch vinyl records, which were relatively good sound, which are subject to wear and tear rpid caused by scratching. Then we have the consumer electronics giant Phillips with some help from Sony invented the CD. The CD or CD has the world by storm with its studio-style digital sound quality and durability. The CD was also smaller than the vinyl andtherefore, easy to stow and transport. In the same way that storing songs has developed and expanded, so the music player. To play the CD, the industry came with CD players and Discman's, which corresponds to the CD player to the Sony Walkman. This meant that people could actually have CD-quality listening with them wherever they went and that was a big advantage, especially to people who are given out. How music moves outdoors, then the speaker. More ConsumersElectronics manufacturers jumped into the idea of producing loudspeakers that could be used outdoors.