nicehck nx7 pro/mk3 iem 7 driver units hifi earphone upgraded 4ba+dual cnt dynamic+piezoelectric hybrid replaceable facepanel

hello, i am glad you patronized our shop. our products are of very good quality and delivered very fast. we will work hard to provide a good service. if you have any needs, you can contact our customer service and we will handle it for you as soon as possible , we strive to provide good service and integrity. we mainly do wholesale. all products are of and low price. if your demand is relatively large, you can also contact us to give you the greatest discount. we hope you will establish long-term cooperation. relationship, here i hope you have a happy purchase, a happy life, good health,thank you