The NuForce NE-700M Earphones new and improved in February 2013 feature wide-range drivers encased in machined aluminum chassis designed to minimize vibration and resonance, The drivers titanium-coating delivers an exceptionally clear, extended bass and distortion-free holographic imaging, The NE-700M Earphones include a hands-free microphone with pick-up button for answering phone calls and operating music playbackfast forward features, The recently revised versions of the NuForce NE700M earphones feature cables with additional strands, 90-degree 3, 5mm plugs, better strain relief and, for the 700M, a new microphone housing and improved pick-up switch, Color: Smoky Bronze, Driver Size: 8mm, Impedance: 16 Ohms, Frequency Response: 20 to 20kHz, Max, Input Power: 10 mW, Sensitivity: 105 dB+-3d, Plug: 3, 5mm, Directivity: Omni-directional, Max Input Sound Level: 115db S, P, L, Length: 54 inches, Connector Specification: 3, 5mm 4-pole stereoiPhone compatible plug, Included Accessories: 3 pairs of single flange ear-tips, one carrying pouch, SKU: NFCE002