Westone summarizes their 2 main IEM lines (W and B lines) & tell us about their new custom ES products (Elite Series), the E40 and E70.
Etymotion BT is a bluetooth attachment for Etymotic earphones. They use the AKM Digital-to-Audio Converter and sound amplifier to retain high audio quality.
Westone have designed real world In-Ear Monitoring solutions with experience from helping bands like Def Leppard, Rush, and Van Halen. And they continue innovating with the release of the W80.