Earphone, 3.5mm singple pin / dual pins / foldable pins, impedance 32ohms or 300ohms
Earphone, headphone for inflight use, airline use:1. Black color, white color or color customerized.2. 3.5mm single pin; 3.5mm dual pins, 3.5mm dual pins with one foldable pin.3. impedance 32ohms...