OLA 1DD+1BA hybrid Wired Earbuds, Lightweight HiFi IEM, 4.4mm without Mic | DMT5 Dual-Magnetic-Circuit Dual-Chamber Dynamic Driver In-Ear Earphones, PURE Hi BA, Coaxial Acoustic Structure, Well Fit

DMT 5 Dual-Magnetic-Circuit, Dual-Chamber Dynamic DriverIts large, transparent magnetic-circuit structure strengthens the effective magnetic flux within the voice coils operating area. The dual-magnetic-circuit structure is designed to increase magnetic flux density and improve field uniformity within the magnetic gap, while the dual-chamber structure helps manage the air load on both sides of the diaphragm, thereby increasing magnetic flux utilization and enabling more stable diaphragm control.; PURE Hi Ultra-High-Frequency BA DriverPURE Hi is an independent BA driver designed to extend the ultra-high-frequency range while enhancing overtones and airiness. The main diaphragm can focus more effectively on the lows, mids, and core treble range by reducing the load on the DMT 5 dynamic driver in the extreme treble region.

Working coaxially together, the two drivers create a more complete and coherent sound.; Coaxial Acoustic StructureOLA II places the dynamic driver and BA driver within a coaxial acoustic structure. Different frequency ranges enter the ear canal along a more closely aligned acoustic axis, reducing imaging shifts caused by differences in sound-source position. Imaging becomes more focused, treble is more precise with a higher proportion of direct sound, and vocals and instruments connect more naturally for a more balanced overall presentation.; Smoother Inner Chamber & Helmholtz rear chamberOLA II features a smoother inner acoustic chamber that guides