Engineered to deliver the highest-quality listening experience from your Apple iPod Suffle, iPod Nano, iPod Touch, iPod Classic, iPhone 5S, iPhone 5C, iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, iPhone 3G, Samsung Galaxy S4 (S 4), Samsung Galaxy S3 (S 3), Galaxy S2, Samsung Galaxy Note 2, Galaxy Note 1, Sony Xperia Z, Xperia, Nokia Lumia, LG Optimus, BlackBerry, or other mp3 players, Android Smartphones, Portable Media players, and mobile device or music device * Swivel ear cups with spring return for single-sided monitoring. * Soft, pliable headband for comfortable extended listening. * Includes two cables: 1) thick coiled cable for standard music players, 2) thin straight cable with microphone for iPhone, BlackBerry and other mobile device. * Driver Diameter: 57mm, Impedance: 64Ω, Frequency Response: 5-20,000 Hz, Sensitivity (S.P.L.): 108±3dB (at 1KHz), Max Power Rating is 3500mW