PremiumBeat is owned and operated by Shutterstock. This is a stock website and platform, and PremiumBeat is their outlet for free sounds for video.
The license is simple, making the SFX appealing for YouTubers, video editors, and makers of games and apps. “You are free to use all of these sound effects in any commercial or personal project. You only agree not to resell or redistribute these free sound effects.” So, no matter what you use these sounds for, you don’t have to pay for a license.
Unfortunately, there are only 280 sounds, but they are a good selection of both funny and serious sound effects for video editing. They’re MP3 files which are great for compatibility, but the files aren’t as high quality as WAV files. Keep this in mind if you are working on a professional project.