FIR Audio e12 Universal In-Ear Monitor with Standard Faceplate (Open Box) desktop OFC cable has been employed

OFC cable has been employed for the core wires

It’s the source of the outstanding quality Sennheiser products are known for the world over

over the phone or online

a highly conductive metal

Dual power supply modes

FIR Audio e12 Universal In-Ear Monitor with Standard Faceplate (Open Box) desktop OFC cable has been employedIntroducing the Electron 12 (e12), a revolutionary leap in the world of In Ear Monitors (IEMs) that defies all expectations. Our groundbreaking SwapX technology sets it apart, allowing you to switch up the look of your IEM with ease using user replaceable faceplate designs. Customize your Universal fit experience with our premium designs and materials for a truly personalized touch. Beneath the sleek exterior, the e12 boasts a powerful single electro