Fosi Audio IM4: Affordable In-Ear Monitors with Beryllium-Coated Drivers Introduced

Fosi Audio IM4 are the brand's inaugural in-ear headphones, featuring an open acoustic architecture and CNC-machined aluminum lightweight construction.

These headphones incorporate a 10 mm driver with a beryllium-coated polyurethane diaphragm and N52 dual magnetic system within a dual-chamber acoustic design.

Weighing only 7 grams per earpiece, they offer ergonomic breathable fit for extended listening sessions, available in black and silver finishes.