KZ AS10 Ten Unit Moving Iron In-ear HiFi Earphone with Microphone(Cyan)1. High precision 3D printing technology, integrated internal acoustic structure, bid farewell to the traditional multi unit moving iron plastic hose guiding method, showing more sound details. 2. Unilateral 5 moving iron, bilateral 10 moving iron. The pure moving iron earphone consisting of 5 professional grade moving iron units on one side and 10 professional grade moving iron units on both sides will bring a leaping sound quality improvement. The