Each sound is around 10 seconds each and includes sounds from the parks movies and rides. All in MP3 form and ready for your micro sd card to install into your Smart Sound door sensor. This all hooks up to a 3.5 aux cable included in your surround sound system or speakers. Here is a link to the Smart Sound. https://www.amazon.com/gp/product/B01M70GV41/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1 you will need it to trigger these sounds. You do not need a speaker system as there is a speaker included in this but sounds a lot better through the 3.5 aux.