Charlotte has dealers for audio equipment and supplies. These dealers sell and resell electronic audio equipment. Audio recording and playing devices have improved tremendously over the decades, from the old gramophone to the sleek new personal music players. Audio equipment includes home audio system with speakers and subwoofers, CD and music players, etc. Amps may also be used. Personal players are portable and usually for individual use (without external speakers). Car audio systems include the players, speakers and woofers as well. Equipment includes wires and cables to connect the electronics to each other as well as to the power source. Dealers sell these accessory equipment as well. The dealers usually have experienced people who help customers with their audio system requirements, and help set them up and configure them. They thus help deliver reasonably priced audio solutions to their customers.