Flipkart is offering Sennheiser CX 180 Street II In-ear-canalphone (In the Ear) at Rs.769. In-the-ear Headphone, 1.2 m Symmetric Cable, 16 ohm Headphone Impedance, Wired ,20 Hz – 20000 Hz Headphone Frequency Response ,In-ear-canalphone Design, 110 dB/mW Headphone Sensitivity at 1 kHz.