Item Type: MMCX EarbudsMaterial: Aluminium Alloy, ABSDrive Unit: 10mm Dynamic Coil UnitFrequency Response Range: 20HZ to 20KHZSensitivity: 100dBImpedance: 16Interface: MMCXSuitable For Headphones With MMCX Interface, Such As for SE215 SE315 SE425 SE535 SE846, for UE900, for TK200 T100, for W10 W20 W30 W40 W50 W60 W80, for ES10 ES20 ES30 ES50 ES60, for UM PRO10 UM PRO20 UM PRO30 UM PRO50, for AM PRO10 AM PRO20 AM PRO30, for XBA A3 XBA A2 XBA H3 XBA H2 HA FX850, Etc.Package List2 x MMCX EarbudsHeadphone cable is not included.1APPLICATION: Earbuds are suitable for headphones with MMCX interface, such as for SE215 SE315 SE425 SE535 SE846, for UE900, for TK200 T100, for W10 W20 W30 W40 W50 W60 W80, for ES10 ES20 ES30 ES50 ES60, etc. 210MM DYNAMIC COIL: Dynamic drive earbuds with a large 10mm dynamic coil gives you excellent sound quality, 3 frequency balanced sound, so you can clearly hear a wider range of sounds. 3HIFI SOUND QUALITY: Replacement MMCX earbuds have HiFi sound quality with low distortion, giving you lossless perfect sound quality, master tuning for clear, noise free sound. 4NOISE ISOLATION: MMCX earbuds block ambient noise to create a quiet space and experience immersive sound. Stable and comfortable for long wear without pain, lightweight design, noise reduction and noise isolation. 5METAL HOUSING: HiFi MMCX earbuds shell is made of metal and ABS with a unique texture. Wiring terminals are also gold plated to minimize sound attenuation caused by conversion and ensure stable connection. 6DIY DETACHABLE: MMCX earbuds connect to the MMCX Bluetooth receiver or adapter to convert to fully wireless headphones with perfect sound quality. If you are a wired person, connect them to the MMCX cable to make them wired headphones.