BeskrivelseIbrain Air Tube headset with low EMFAir Tube earphones especially designed to reduce mobile phone radiation. Low EMF wire specially designed to lower electricity and magnetic fields using the best possible modern technology.No metal near the earAirtube channel with sound.Airtube channel with no electricity.The manufacturer Ibrain has  patents in 8 countries for inventing radiation free headsets. Material: Plastic.Ear-Cushion: Sponge/ Cloth/Silicon.Earphone around the ear: plastic.Wire: Copper.Use:Mobile Phone and other mini jack connections.Function:Microphone, Noise CancellingRated Power:1mWMaximum Power:3mWColor:WhiteFunction Key:Yes