TFZ manufactures a series of affordable and great sounding IEMs including true wireless IEM, planar magnetic IEM, multi-driver IEM, and hybrid driver IEM. Offering the best value for the audiophiles who demand great sound and pocket friendly price. The No. 3 19 edition in particular was a hit with the bang for the buck price tag paired with a fun and amazing bass performance, not to mention the classy gold-black design with solid build.