KZ AS10 Ten Unit Moving Iron In-ear HiFi Earphone without Microphone 1. High-precision 3D printing technology, integrated internal acoustic structure, bid farewell to the traditional multi-unit moving iron plastic hose guiding method, showing more sound details. 2. Unilateral 5 moving iron, bilateral 10 moving iron. The pure moving iron earphone consisting of 5 professional-grade moving iron units on one side and 10 professional-grade moving iron units on both sides will bring a leaping sound quality improvement. The unilateral consists of 5 moving iron units, which are: 22955x1 low frequency, 29689x1 intermediate frequency, 30095x2 high frequency, and 31005x1 medium and high frequency. 3. For the AS10 exclusive 22955 low-frequency moving iron unit, not only the low-frequency strength is full of explosive power, but also the elastic texture is not inferior to the moving-loop low frequency, low distortion, fast transient, high resolution, rich details, and wide bandwidth. 4. Professional-grade crossover circuit design fully utilizes the performance advantages of each moving iron unit. 5. 0.75mm gold-plated 2Pin pin, plug-in test life of more than 10,000 times. 6. Durable wire, providing excellent sound quality signal transmission, anti-pull, anti-bending, anti-corrosion. 7. User-friendly interchangeable line design, giving headphones more extended play. 8. Optional upgrade Bluetooth module, seconds to change Bluetooth wireless headset. 9. Optional silver-plated upgrade cable to enhance the audio quality of the headphones. 10. Ergonomic and acoustic structural characteristics, the custom-made cavity provides comfortable and stable wear, long-wearing and painless, madness can not afford. Product parameters 1. Sensitivity: 105dB. 2. Impedance: 14ohm. 3. Frequency response range: 20-40000Hz. 4. Plug type: 3.5mm, pin type: 0.75mm. 5. Cable length: 115-125cm. 6. Product weight: 22-28g.