We have come a long way since the large headphones and stereo or even the Discman were introduced. Now we can listen to music, with great sound through tiny MP3 player devices. It hasn’t stopped there though. You can now listen to music with terrific sound through wireless Bluetooth earphones. When these were first introduced to the public they were huge and bulky. But now they are extremely light, slim and comfortable to wear. One such model is the Motorola S9.