Radiation Free Air Tube Headphones Reduces EMF radiation to near negligible levels compared to traditional earbuds. Works with any 3.5 mm jack including iPhone, Android or Windows phones 99.9 percent reduction in radiation compared to holding a typical cell phone to your ear and 97 percent reduction in radiation compared to ordinary headphones Includes an extra set of noise isolating silicone eartip buds for smaller ears Includes a built in mic for taking and receiving phone calls 30 Day Money Back Guarantee