Battery tech is steady moving forward – it is smaller and holds charge longer.
True wireless earbuds (TWS) get benefit from it.
The current longest battery life for true wireless earbuds is 6 hours.
Quick charging is a great feature – 5 minutes of charging gives a lot more than you expected 2 or 3 hours of listening music.
Bluetooth 5.0 seems to be the fit for IoT. It’s uncertain it will improve the sound quality but the Bluetooth connectivity is easier to set up. If your phone supports Bluetooth 5.0 – it can simultaneously connect to 2 separate earbuds, no more the need for syncing between 2 earbuds.
Active Noise Cancelling (ANC) isn’t necessary, though this term is often highlighted in marketing campaign.
If it works like Bose QC series – it could be a good thing but most of them don’t.
Just in some situations such that noisy subway – other than that it won’t matter. And if you switch ANC on it will consume a lot of battery.
If you think Apple Airpods sound great – Nope it’s not a standard for sound. You can easily find a pair that offers a better sound – because it provides better noise-isolation therefore better bass and richer sound.
Longer lasting battery and better sound aren’t trade off – earbuds will look bigger and may cause discomfort. And they also need a larger charging that may not fit into your pan pocket.