With features like active noise canceling (ANC), transparency modes, and aptX, it’s hard to figure out what you should actually look for in a set of true wireless earbuds. So, we’ve wrangled together all of the wireless earbud features that actually matter, and explained why they might (or might not) be useful to you.
Source: How to Buy True Wireless Earbuds: Understanding the Features That Really Matter – Review Geek