RadiArmor Anti-Radiation Air Tube Headphones with Microphone &ndash; EMF Protection for Radiation Free Comfort (Black) OVERVIEW: Reduces EMF radiation to negligible levels. Built-in microphone, volume and call answering buttons. Works with any phone or device that has a 3.5mm jack. Newly updated dual 8mm drivers provide true stereo sound. RADIATION PROTECTION: Air tube technology and shielded wiring achieves 99.9 percent radiation reduction compared to holding a typical cell phone to your ear and 97 percent reduction compared to using ordinary headphones. NEWLY UPDATED: RadiArmors classic air-tube headphones have been newly updated for 2018. New features include improved speakers, volume buttons and more compact and lighter earbuds made of magnesium alloy. COMFORT: RadiArmor headphones are designed for all day comfort and include two sizes of silicone tips. Newly updated earbuds are lighter than our original. A long, tangle free cord allows you to easily keep your phone in your pocket or bag while in use. ONE YEAR WARRANTY: RadiArmor headphones are built to last and come with a 1-year hassle free warranty. Note: new speakers deliver powerful sounds, so please check volume slider before use. If you hear no sound the volume may be set to low.