Tekfusion Ecoofers In-the-ear Headphone http://www.flipkart.com/tekfusion-ecoofers-in-the-ear-headphone/p/itmdzkeypsjhehxn Key Features of Tekfusion Ecoofers In-the-ear Headphone (Black & Ebony) In-the-ear Headphone In-ear-canalphone Design 18 Hz - 20000 Hz Headphone Frequency Response Neodymium Magnet 16 ohm Headphone Impedance 110 dB/mW Headphone Sensitivity at 1 kHz 3.5 mm Headphones Jack Price Comparison 1. HomeShop18 @ RS 1475 http://www.homeshop18.com/tekfusion...udio-video-players/product:30409558/cid:16767 2. infiBeam@ RS 950 www.infibeam.com/Portable_Electronics/tekfusion-ecoofers-ear-earphone/P-poel-61186848671-cat-z.html 3. Snapdeal @RS 899 http://www.snapdeal.com/product/tekfusion-ecoofers-inear-headphones/351857426 4. ebay@ Rs 999 http://www.ebay.in/itm/Tekfusion-Ecoofers-In-Ear-Headphones-Ebony-Edition-/221286019810