Cặp tai nghe In-Ear 15.4mm 150ohm chuyên dụng

Mx500 high impedance headphone unit diy150 ohm subwoofer 15.4mm flat head earbud 15.4MM mx500 flat head earphones vocal analysis diy headphone unit speaker 150 (Ω) ohm high resistance Technical Parameters Category: electric (moving coil) Uses: high fidelity (home) Shape: round Magnetic circuit form: internal magnetic type Frequency characteristics: Bass (low frequency) Rated impedance: 150 (Ω) Frequency response: 20-20000 (kHz) Sensitivity:111（dB/W） Directivity: red dot is positive Package: 2pcs 150ohm speaker 2pcs shell