Store : Shopclues.com List price : 499 Deal price : 359 Shipping : 34 Coupon : SCTT60 Validity : 30 Sept http://www.shopclues.com/philips-she3501pp-00-in-ear-headphones.html Features: Wired In-the-ear Headphones In-ear-canalphone Design Max Power Input: 50 mW Frequency Response: 12 Hz - 22500 Hz Headphone Impedance: 16 ohm Jack: 3.5 mm Cord Type: 1.2 m Symmetric Sensitivity: 100 dB/mW