KZ ZSR 6-unit Ring Iron In-ear Wired Earphone, Standard Version(Black)

1. Material: plastic
2. The four-layer CCAW voice coil brings strong bass impact, making every rhythm of the music more dynamic
3. Ergonomic design, comfortable to wear
4. Humanized pluggable design, expandable and upgradeable Bluetooth headset
5. Precisely and accurately calculate the sound characteristics of each unit, improve the transient response ability, and highlight various subtle details in the music
6. Frequency response range: 10-40000Hz
7. Cable length: 120+/-5cm
8. Impedance: 22 ohms
9. Sensitivity: 107db
10. Plug type: 3.5mm
11. Pin type: 0.75mm
12. Sounding principle: ring-iron mixing (1DD+2BA)