64 Audio Duo In-Ear Monitors @ TechPowerUp
 

64 Audio introduces its latest and least expensive set of universal IEMs with the new Duo, which uses a hybrid driver configuration of one dynamic driver, one tia driver, and more innovative technologies than you can count! It's a highly open set in more ways than one and executes a warm and smooth sound signature quite well.

https://www.techpowerup.com/review/6...-ear-monitors/