Coby CVH-800-PNK Jammerz Xtra Headphones and Earbuds with Case, Pink The Jammerz Xtra design enhances fit, distributes weight, and adds comfort. Engineer used precision sound testing to deliver how the music was intended to be hear. 2 in 1 Headphone set that provide everything you need on the get go hassle free. No more knocks with our Tangle free flat cable. Designed for smartphones, tablets and media players for your convenience the all in one you need.