Sony MDRZX110AP ZX Series Extra Bass Smartphone Headset with Mic (Black) + 3.5mm Mini Plug to 1/4 inch Headphone Adapter &amp; HeroFiber® Ultra Gentle Cleaning Cloth (2 pack)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> This kit includes 6 items; 2 Sony MDR-ZX110AP/ black headphones， 2 3.5mm mini plug to 1/4" inch headphone adapters &amp; 2 HeroFiber® Ultra Gentle Cleaning Cloth </span></li><li><span class="a-list-item"> High quality and powerful sound， Closed-Back Design， Thick On-Ear Cushions， Neodymium dynamic drivers deliver precise sound </span></li><li><span class="a-list-item"> Pair with your MP3 player， great for home， studio &amp; with smartphones， In-line microphone for hands-free phone calling </span></li><li><span class="a-list-item"> Collapsible Construction， Swivel Earcups， 1.2m/47.25" cable (both-sided) </span></li><li><span class="a-list-item"> Driver Unit: Closed supra-aural， Dynamic 30 mm， dome type (CCAW Voice Coil)， Frequency Response: 12 - 22，000 Hz， Impedance: 24 ohms at 1 kHz， Sensitivity (db): 100 dB/mW， Power Handling Capacity: 1000 mW </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51FETQPI9NL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51SpW1TwvKL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51Fdxs12pOL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51a%2BY6cdU9L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51UQ0evtsXL.jpg" noproxy>