Sennheiser CX 3.00 White In-Ear Canal Headphone 18-ohm impedance transducers deliver extended powerful sound featuring extended frequency response and deep bass.Connectivity Technology: Wired Optimum In-Ear canal fit with 4 sizes of ear adaptors providing high attenuation of ambient noise 1.2 m tangle-free, elliptical cable with 3.5 mm right-angled connector Convenient carry case included Two year warranty when purchased from an authorized Sennheiser dealer