Ultimate Ears’ Custom-Fitted CSX Earphones

Using the brand's at-home FitKit, wearers can fully customize these earbuds

We’ve been fans of Ultimate Ears‘ custom-fitted earphones since we first reviewed them back in 2005 and have reported on improvements unveiled since. Now the CSX earphone family supports Bluetooth and UE’s Fitkit program allows customers to make their own ear impressions at home with a smartphone (you can still visit an audiologist to create your ear impressions) and once you send over the impressions, …