Sony’s indisputable audio success lies with the hugely popular WF and WH series of true wireless buds and over-ear headphones. The Sony WF-1000XM4 earbuds lead by example when it comes to high-quality listening in a compact form factor. With much talk of a brand new WF-1000XM5 version on the horizon, it begs the question — what does Sony have in store for the WF/XM line?

There are a lot of gaps still to fill in at the moment, but we can make some pretty good assumptions based on rumors, previous models, and Sony’s proprietary technology. There are also a lot of features among the WF/XM series that we’d like to see the WF-1000XM5 earbuds improve upon. Read ahead for what we know and what we’d like to see in these buds.