[align=center][/align] http://www.ebay.in/itm/Quantum-QHM555-B ... 1064923600 Key Features High Density Neodymium magnet (300KJ/M3) Powerful and clear sound Type Open air dynamic/ Driver units 10mm, dome type Power handling capacity: 50mW Frequency response: 50 -23000 Hz Cord: 1.04m (48 inch) Weight ( Mass) – approx 6 gms ( without cord)