2. 0.78mm 2Pin Connector: It can fit CIEM NICEHCK NX7/NX7 PRO/DB3/F3/NK10/FR12/SP12/ KZBA10/AS10/ZS10/ZSR/ZST/ED12/ES3/ES4/ KZED16/ZS7/ZS6/ZS5/ZS4/ZS3/ZSA/ZS3E/EDX CCA CA4/C10/C12/C16/TRN BA5/V90/V10/V20/V30/V60/V80/IM1/IM2/X6 TFZ/ AUGLAMOUR / BQEYZ / KINERA Freya / QOA Vesper/Pink Lady/TONEKING LUCIFER and so on 2Pin connector earphone universal.
3. QDC 2Pin Connector: KZ ZSX/ZSN/ZSN PRO/ZS10 PRO/AS12/AS16/ZAX/ZSN Pro X/ASF/ASX CCA CA4/A10/C12 CA16/C10 Pro TRN BA5/STM/VX/BA8 /V90s/QDC earphone dedicated