MOLDEX Sparkplugs Soft Foam Earplugs 60 Pairs Ear Plugs for Sleeping, Snoring, Work, Travel, Shooting - 33dB Highest NRR Made in USA

Q: Do these block out loud people talking/laughing? And all other loud noises?

I think it depends on how well they fit into your ear canal. These were hard for me to get positioned, but on the few times I did they seemed to block out most of the heavy traffic noise outside of my house. When they are not in exactly right I could still hear noise through them.