Dual muff style headset with adjustable behind-the-head stainless steel band and over-the-head adjustable velcro strap, packed included with Coil Cord Cable. Noise-canceling microphone reduces transmitted background noise, 24 Decibel NRR hearing protection. Clear hear audio speaker with volume control and ear dome PTT button. 3.5mm Audio input Aux port jack for MP3 Player or Scanner. Carbon fiber style two way radio headset perfect for Racing Intercom, Avionics, and Industrial use.