HiFiGo AFUL PolarNight HiFi Earbuds, 4BA+1DD 5 Driver in Ear Monitor, HiFi Wired Earbuds with Detachable Cable for Musician Audiophile (4.4mm)

Model: PolarNight Impedance: 32Ω Sensitivity: 108dB @ 1kHz Driver Unit: 15.4mm dynamic driver Material: Aluminum alloy + resin Frequency Response: 20Hz - 25kHz Diaphragm: PET composite PU Technology: Dual-Resonance & Dual-Damping Amplitude Control

• Exquisite craftsmanship： Metal front cavity + precision 3D printed acoustic back cavity: make full use of the advantages of metal's high frequency and resin 3D printing's special shape structure, combine the two processes to achieve a perfect sound and unique appearance.
• Exclusively developed and designed 15.4 dynamic unit：The unit uses high-performance magnets and the coil uses copper-clad aluminum voice coils to further enhance high-frequency resolution and ductility. Provide you with "true HIFI" level music enjoyment.
• Revolutionary Sound Quality：Low frequency is the biggest improvement of PolarNight over traditional open headphones. Its unique rear cavity structure allows it to maintain sufficient bass depth. The human voice is real and vivid, the high pitch area is smoothly extended, and the true restoration of each frequency band ensures that Polar Night has excellent resolution.
• About the wire: The wire base adopts 5N single crystal copper + silver foil wire, 4 strands of wire 122 cores, and the MMCX replaceable wire design has higher flexibility and scalability. You can not only easily replace different types of wires to match different music styles, but also meet the needs of use in different scenarios.
• Ergonomic Design： The back cavity is made of resin material, which is light and comfortable. The earphone head is a flat head plug design, which can ensure excellent comfort and stability even in daily use and long-term wearing, bringing you an excellent wearing experience.