Disposable Aviation Airline Headphone - TamoTechnologyCoLtd ( China ) - Offers to Sell and Export - Friday 5 May 2017 3:18 am - disposable aviation airline headphone frenquency range 20hz 20khz impedance 32ohm+ 15% sensitivity 100db+ 5db at 1 khz speaker 30mm plug type 3 5mm stereo lenght of cable 1 5+ 0 ...