Sennheiser CX2.00I Earphones Black 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 Specifications: - Impedance: 28 Ohms - Frequency Response: 17Hz - 20kHz - Sound Pressure Level (SPL): 119 dB - THD, Total Harmonic Distortion: Less-than 0.5 percent (1 kHz, 100 dB SPL) - Jack Plug: 3.5 mm angled - Cable Length: 1.2 m - Weight: 15 g