Fiio F9 PRO review
After the success of Fiio F9, they announced in November 2017 a new upgrade model called F9 Pro, which is the company’s second hybrid in-ear monitor (IEM) model, which i will now review for you ….
After the success of Fiio F9, they announced in November 2017 a new upgrade model called F9 Pro, which is the company’s second hybrid in-ear monitor (IEM) model, which i will now review for you ….