A no compromise, high-performance noise-isolating headset plus earphones that delivers best-in-class benefits and superior value, perfectly matched to the latest product innovations from most smartphones that support a 3.5mm/4-conductor stereo phone plug. Inline Remote: 1 Button with Microphone. Transducers: High-performance balanced armature. Cable: 4 ft with 3.5 mm plug. Accuracy Score: 85plus%. Impedance: 16 Ohms. Noise Isolation: 35-42 dB.