High-quality headset with a rich and vibrant bass-driven sound. Sennheiser"s new CX 2.00 headset has the rich and vibrant bass-driven sound you"ve come to expect from a Sennheiser product. Combined with the ease of use from the 3 button in-line remote with integrated mic, lets you answer your calls and control your music with just the push of a button. The CX 2.00 is the perfect headset when you are on the move. Features Headset with vibrant sound and deep bass Optimized shape and size for perfect fit and outstanding comfort 4 ear adapter sizes (XS, S, M, L) for effective noise blocking 3-button in-line remote with an integrated mic Available in black or white 2 year warranty What"s in the box? CX 2.00i earphones Ear adapter set (XS, S, M, L) Color white Device iPhone/iPad/iPod Impedance 28 Ω Frequency response 17Hz - 20kHz Sound pressure level (SPL) 119 dB THD, total harmonic distortion <0.5 % (1 kHz, 100 dB SPL) Jack plug 3.5 mm angled Cable length 1.2 m Weight 15 g