Model FD15 FD5 FD3
Type 1 dynamic driver 1 dynamic driver

1 dynamic driver

Balanced Armature N/A N/A

N/A

Dynamic Driver 13.8mm DLC+Magnesium aluminum alloy diaphragm 12mm DLC+Beryllium-plated diaphragm

12mm DLC diaphragm

Frequency Response 10-40kHz 10~40kHz 10~40kHz
Sensitivity 112dB/mW (@1kHz) 109dB/mW (@1kHz) 111dB/mW(@1kHz)
Impedance 32Ω 32Ω (@1kHz) 32Ω(@1kHz)
Plug Interchangeable 3.5/4.4mm plug MMCX interchangeable plug 2.5/3.5/4.4mm

3.5mm single-ended jack

Cord Length 1.2m 1.2m 1.2m
Weight (per ear unit) About 12g (excl. cable) About 11g (excl. the cable)

7.0g (Single unit, excl. the cable)

Color Black/Silver Silver

Gun black, Silver

Detachable Cable Design Yes (Standard MMCX) Yes
(Standard MMCX)

Yes

(Standard MMCX)