With the HD 2.30 we went for the all-in package. This means, you get much more then a pair of elegantly designed, lightweight yet robust, foldable headphones. For freedom of movement the HD 2.30 features a detachable single-sided cable, which has a 3-button inline remote plus microphone. Optimized for either Apple iOS (HD 2.30i) or Android devices (HD 2.30G), this remote lets you control your music, and make and take calls.