The Tracks Headphone is an award-winning, supra-aural headphone with a subtle design focusing on elemental lines and an overall iconic shape. The simple brace design is easily adjustable and ensures a comfortable and secure fit. The 40mm speaker offers a better frequency distribution and a full-spectrum sound quality with a tight bass and detailed high frequency notes. 3 Button in-line Microphone with call/music/volume control Integrated tangle-free Y Connector Soft, lightweight 2mm cables Durable, soft, open-cell foam ear pads ensure comfortable, extended listening 10mm on-ear driver delivers full-spectrum sound quality with tight bass and high frequency notes Specifications - Driver - Unit Size 40 mm Plug - Angled Stereo Plug 3.5 mm Speaker Impedance - 32 Ohm Speaker Sensitivity - 112 +/- 3dB Maximum Power Input - 40 mW Frequency Response - 20-20KHz Microphone Sensitivity - -42 +/- 3dB Microphone Directivity - Omni-directional