Product parameters:
Product model: SIGMA
Product name: Interchangeable in-ear HIFI headphones
Unit configuration: 6mm diameter high-performance dynamic unit + 60040 dynamic iron
Diaphragm material: LCP dome composite diaphragm
Impedance: 30±3 (@1kHz)
Sensitivity: 107dB/rms (@1kHz)
Frequency response range: 15Hz-37kHz
Headphone connector: 0.78 mm_2pin
Standard line plug: 3.5 mm stereo single-ended plug