DUNU SA3 (6 moving iron/single side 3 moving iron) canal earphone with interchangeable cable 2pin design 1. Three-unit moving iron earphone 3D printing cavity hand-painted art panel single crystal copper silver plated wire 2. Lightweight resin material, Two customized medium and low frequency moving iron units, one customized high frequency moving iron unit Crystal copper silver-plated wire reduces loss to ensure sound quality and comfortable wearing experience 5. Easy to drive, enjoy good sound quality anytime, anywhere很好推 6. 高精度3D列印，