Model FH9 FH7 FH5S FH5
Type 1 dynamic driver + 6 balanced armature drivers 1 dynamic driver + 4 balanced armature drivers 2 dynamic driver + 2 balanced armature drivers 1 dynamic driver + 3 balanced armature drivers
BA

Knowles DFK*2 (MF)

dual BA driver SWFK-31736

Knowles CI-22955 + ED-29689 + dual BA driver SWFK-31736 Knowle TWFK-30017 Knowles ED-30262 + dual BA driver TWFK-31082
DD

13.6mm DLC diaphragm

low frequency moving coil

13.6mm beryllium diaphragm 12mm beryllium-plated diaphragm
6mm beryllium-plated diaphragm

10mm PU PET composite diaphragm
Frequency Response 10kH~40kHz 15kH~40kHz 10kH~40kHz 15kH~40kHz
Sensitivity 108dB (1kHz @ 1mW) 111dB/mW 106dB/mW (@1kHz) 112dB/mW
Impedance 18 Ω (@ 1kHz) 16 Ω(@ 1kHz) 40 Ω(@ 1kHz) 19 Ω(@ 1kHz)
Plug MMCX interchangeable plug 2.5/3.5/4.4mm 3.5mm three-pole single-ended plug MMCX interchangeable plug 2.5/3.5/4.4mm 3.5mm three-pole single-ended plug
Cord Length 1.2m 1.2m 1.2m
1.2m
Weight (per earbud) about 12.8g (excl. the cable) about 8.15g (excl. the cable) About 8.8g (excl. the cable) About 7.1g (excl. the cable)
Color Titanium / Black black black / silver Black / titanium
Replaceable line design Yes (standard MMCX connector) Yes (standard MMCX connector) Yes (standard MMCX connector)) Yes (standard MMCX connector)