This software can play any sounds, which located on the hard drive. This hard drive installed in the car main display known as main board. So this display can show all your iphone features on the screen, such as messages, phone calls, contacts, everything as normal iphone has. But also this screen has special software named "Car Sounds" which can play any sounds through car beep, for example you have a driver ahead your car which "sleep" on the green light, so you can press button using my software "Car Sounds" and your car will beep the word "Wake up Mate", so the driver can start drive. It can be any sounds you want, like: "Your are awesome!", "Nice car" etc. Also my software "Car Sounds" can play any music tracks what you bought in iTunes, what can be awesome when you instead of boring just "beep" sound have your own individual one.