iHome iB25 Noise Isolating Earphones - Blue Noise isolation reduces distracting background noise and provides a quieter environment for music enjoyment Dual purpose packaging hangtag acts as earphone cord wrap for added cord management Lifetime warranty Detachable ear cushions fit a variety of ear sizes Great sounding earbuds work with any 3.5 mm headphone jack, provide dynamic sound with enhanced bass response. Connectivity technology : Wired