It can fit CIEM Shuoer Conductor/Singer/Soloist/EJ07/Tape Pro KZ BA10/AS10/ZS10/ZSR/ZST/ED12/ES3/ES4 KZ ZS10/ZS10 Pro/ZSN/ZSN Pro/ZSN ProX/ZST/ZSTx KZ ZSX/ZAX/ASF/ASX/EDX/AS16/AS12/AS10/AS06/BA10 CCA CA4/C10/C12/C16/TRNBA5/V90/V10/V20/V30/V60/V80/IM1/IM2/X6 NICEHCK F3/NX7/NX7PRO/NX7MK3/DB3/NK10/FR12/SP12 FiiO FD1/ FH1s /Dunu/ Shanling/ OSTRY/ NFAUDIO/ MOONDROP/ TANCHJIM/ IKKO/ SHOZY/ SIMGOT/ TINHIFI/ TFZ/ AUGLAMOUR/ BQEYZ/ KINERA/ QOA BGVP/Remax/YTAO/TONEKING/LUCIFER/Ye/TO600/TO400s/TO200/TO180/TO65/ZFRE1/TS5/TY2/UNICORN/EA/1Q/V10/P10/BL1/Shockwave III/T5/ T3/ TK16S/T6/T88K/T4/Dendroaspis Viridisand so on 2pin connector earphone universal.
3. QDC 2Pin Connector:
QDC earphone / TINHIFI P2/T1 Plus TRN BA8/BA5/M10/STM/ST1/VX/V90S CCA CKX/CA4/C10 Pro/A10/C12/CA16/CS1 QDC/ YTAO HYBRID 2+6 earphone dedicated
4. NX7 2Pin Connector:
NICEHCK NX7/NX7 PRO/NX7 MK3/DB3 FiiO FD1/FH1s TFZ / AUGLAMOUR earphone dedicated (NX7 connector can use for BL-03/BL05 , but will leave a little bit of plastic showing)