Apply to ordinary Dynamic/balanced armature headphones, whether can be used,refer to the inner diameter of the mounting hole.
Compatible Models(models may not be complete, but can be used in most of earphone):
Xiaomi: 2.0 Piston , 3.0 piston , brief version, colorful edition
SONY: HPM-70, HBH-IV835, HBH-DS970, NC22, NC22, NC32NX, BT20NX, NX2, NX3, NX2SF, MDR-91EX700SL, EX500, EX510, EX300, EX32, EX35, EX76, EX33, EX55, EX52, EX70, EX71, EX51, EX90, EX85, EX082,etc
Triangle: CK9, CK10, CKM50, CKM30, CKM70, CKM90, CK1, CK51, CK7, CK6, CK31, CK52, ANC3,etc
Sennheiser: IE6, IE7, IE8, CX6, CX95, CX280, CX300, CX500,etc(CX and IE series are available)
Beyerdynamic: DTX41, DTX50, DTX60, DTX71, DTX100, MMX100,etc
AKG: K321, K324P, k328, K330, K340, K350, K370, Q350,etc
KOSS: KEB24, KEB29, KEB40, KEB79, KDX200,etc
Philips: SHE9650, SHE9700, 7500,etc
JBL: Reference 220,etc
Creative: EP630,etc
Meizu: EP30