Aluminium, PVC kabel + Nilon protection cover, POM Zipper, Aluminium mic case, Kobber+Nickel plug, Driver unit: Dia 10mm, Impedance: 32ohms, Sensitivity: 95dB+/-3dB, frekvens: 20Hz-20,000Hz Jackstik: 3.5mm 4P Mikrofon: 58dB+/-3dB