Philips O'Neill SHO4507/28 Covert, Powerful, and Discreet Earbud Headset (Code Green) (Discontinued by Manufacturer) Neodymium magnet: Neodynium is the best material for producing a strong magnetic field for greater sensitivity in a voice coil, better bass response and higher overall sound quality Comfort ear cushions: The special shape and luxurious materials used for the ear cushions ensure a perfect fit for maximum comfort. They prevent audio leakage and enhance bass performance too. Integrated microphone: With the integrated microphone and call button you can use this headset for music as well as calls from your mobile phone. Enjoy handsfree calling, while easily accpeting and ending calls from your headset; 3.5mm stereo connector Philips O'Neill The Covert - Powerful and Discreet Ear Bud Headset SHO4507/28 Microphone/Volume control/Track control for iPhone/iPod/iPad Tough tangle-free cable and reinforced gold-plated connectors that provide enhanced strength Noise isolating soft ear caps Powerful 13 mm drivers that deliver a deep/dynamic bass