Final Audio F4100 High Fidelity In-Ear Headphones (Open Box) portable Diameter for the middle tray:

Diameter for the middle tray: 100mm

Developed by JVCKENWOOD's sound engineers

it provides ample room for movement while ensuring seamless connectivity

which guarantees three-frequency sounds balanced

a planar magnetic driver converts sound energy to sound waves in a more balanced way

Final Audio F4100 High Fidelity In-Ear Headphones (Open Box) portable Diameter for the middle tray:Final Audio F4100 High Fidelity In Ear Headphones Bringing the driver unit closer to the ear drum, achieves an even more realistic, vivid sound quality. Final has meticulously downsized the housing with a design consisting of the minimum possible elements to accomplish this in the Final Audio F4100 High Fidelity In Ear Headphones. Miniaturized to have a diameter of 5. 5 mm, the housing is finished with hard aluminium magnesium alloy anodic film. This