The Phiaton PS 200 earphone stands out from the crowd with its high-end sleek design that offers superior sound quality and provides the ultimate listening experience. The PS 200 is ultra lightweight due to it's aluminum structure. These sound isolating earphones, deliver great detail and spacious sound, while background noise just fades away. This makes the PS 200, perfect for your iPod, MP3 player, or other electronic device with a standard 3.5mm outlet. Soft silicon ear tips come in 3 sizes for the most comfortable fit. Specific features include: Dual balanced armature drivers with passive crossover network, Impedance: 39 ohm, Sensitivity: 95 dB, Max input power: 30 mW, Weight: .176 oz / 5 g without cord, Accessories Includes: Plug adapter for air travel, Set of silicon ear tips includes 3 sizes, Carrying case.