Model: H2040D
Driver Magnet: Φ50 mm
Impedance:20±15%Ω
Sensitivity: 113dB±3dB
Frequency response: 20Hz-20KHz
This headphone is very nice, its sound quality is very good, you can take it. But for those who like to listen to music more, the sound may not be so good, but the sound is very loud and clear