The blue PRO 300 on-ear, closed back headphones incorporate 40mm dynamic drivers featuring neodymium magnets that provide maximum efficiency when used with mobile devices. The reinforced headband with ample padding and soft earpads offer excellent acoustic properties and can fold into a compact size and come with a soft carrying case and cleaning cloth. Its 4-foot flat, tangle-resistant cable with right-angle miniplug attaches directly to a single earcup keeping it out of your way. The cable includes an in-line remote/microphone for use with iOS devices and can control volume for music and phone calls, play/pause music, skip back and forth, and answer/end phone calls. 20-20,000 Hz frequency response; 107 dB sensitivity, 53 ohms impedance and 1 year warranty.