IND Astrum Aux Headphone - Black

Plug type 3.5mm,
Sound unit: 40mm,
With mic or not:yes,
Speaker impedance 32,
Link line length 1.2m,
Headphone type headset,
The maximum power is 30MW,
Frequency response range 20-20,000Hz,
The sensitivity of the earphone is 82dB±3