Microsoft has recently announced that there Surface Earbuds that were incoming for this year towards the end of the year. Unlike Tesla, it seems that Microsoft is actually spending time to make sure that there features they claim
actually work. But in the last couple of days, they have changed the release date to spring 2020. Microsofts CPO Panos Panay tweeted this today "Product-making is about the relentless pursuit to get all the details right, which takes time…sometimes more than we planned on. To ensure we deliver the best possible experience for you, our fans & customers, Surface Earbuds will now launch worldwide in Spring 2020 #Surface". This pretty much is saying that Microsoft is not ready for this release.
There could be a chance that Microsoft was ready for these released but since recently Apple has released there new Airpod Pros which include Noise Canceling for a price of 250 dollars USD. This is not confirmed from Microsoft but there is a high chance that is the reason for this delay. We can never tell though what is going to happen with these earbuds.