X-rays are commonly produced by accelerating (or decelerating) charged particles; examples include a beam of electrons striking a metal plate in an X-ray tube and a circulating beam of electrons in a synchrotron particle accelerator or storage ring.
Examine your computer for jacks and ports that support your audio device. The location of certain jacks and ports will vary depending on your computer's make and model. For example, most jacks on a desktop computer will be located in the back; whereas jacks on a laptop computer are usually located on its sides.
One button is used to turn the speaker on/off. The next button is used to lower the volume of the speaker, next one is used to play or pause music and is also used to answer or end calls. The last button is used to turn the volume up. The micro-USB slot and the 3.5 mm AUX jack is located on the side of the speaker.