Fearless Audio Barcelona Universal In-Ear Monitor true wireless the device delivers outstanding measured

the device delivers outstanding measured values

Voice assistant (IOS voice)

Bass and treble -6 dB to + 8 dB

but due to our proprietary Acoustic Metamaterial Tuning System

Fearless Audio Barcelona Universal In-Ear Monitor true wireless the device delivers outstanding measuredExtraordinary Tuning Detachable Cable & Full Upgradeability Ergonomic Shape About Fearless Audio Founded in 2012, Fearless Audio is committed to providing perfectly fit customized earphones, including in ear monitors specialized for professional audio engineering and stage performance. As a world class technical audio company, Fearless Audio has established a specialized digital R&D department in 2016 for the exploration and application of 3D printing