There are a couple of turntables that can be part of a wireless Sonos system, including one from Victrola. If you have the appropriate Sonos devices and the necessary turntable, you can connect them via Bluetooth. 

Most people, I suspect, use a wired connection to a Sonos device that has a line in. 

You might want to do an Internet search, or read the turntable threads on this forum. 

Sorry but I’m not a big expert here so I need further support 

I’m having Five Sonos and Move Sonos connected with Buffer 

Can you give a manufacturer and model number for your “Buffer”?

My guess is the Sonos Boost? https://www.sonos.com/nl-nl/guides/boost?srsltid=AfmBOoptDIEAhw-zp8VnT9Cs50XKoFbjibntGJAPsAWsAeahOV2rU3qO

What “further support” do you need?

FWIW, Sonos doesn’t offer a specific ‘buffer’ device. Any Sonos analog line in automatically buffers the input by 75ms, and streams as well,  in order to play the content across multiple Sonos ‘rooms’