Can I make my old Hi-Fi wireless?

Can you tell me, is it possible to convert my vintage Hi-Fi system into a wireless one? I've been using this system for years and it sounds great, but I'd love to be able to stream music from my phone or laptop without having to deal with wires. Is there a way to do this without sacrificing sound quality? Are there any specific adapters or devices that I should look into? I'm a bit of a tech novice, so I'd appreciate any guidance you can offer.