All padded metal frame

A foam soft head pad and articulated wire sliding adjustable head band.

Domes with a choice of different colors, with soft foam compressible ear seals

Mono/Stereo on one ear and volume control on the other.

Free Deluxe adjustable flexible mike boom with free mike muff.

Noise cancelling electret microphone,

Gold plated communication cable plugs for better contact resulting in noise free audio.

NR Rating : -26 db

Frequency response : 20-17.000 Hz

Speakers : Impedance 150 Ohm/mono 300 Ohm/stereo

Frequency sensitivity : 101 db

Microphone: frequency response 300-8000 Hz

Source resistance : 220-2200 Ohm