Here you can buy sounds intended for movies, game developers etc. Once purchased, each sound is royalty free and can be used in any production you make. You only have to buy the sound once. All the sounds are recorded by me, so I can guarantee its source. These sounds are not free but once purchased become royalty free for you & your production/s.  Please put email address in Paypal note, or email me at markman59@hotmail.com  .Please allow some time to receive your sound/s as it's sent manually at present. You will then get a link to download the sound. Here is a link to the license  https://en.wikipedia.org/wiki/Royalty-free