The sand version of the Sennheiser Urbanite On-Ear Headphones for Apple iOS mobile devices offers a durable and stylish metal design with stainless-steel hinges, aluminum sliders, and closed-back supra-aural dynamic transducers. This combination delivers clear treble and enhanced bass with an extended frequency response of 16 to 22,000 Hz, a THD of less than 0.5%, and a maximum SPL of 118 dB. They come with a detachable in-line omnidirectional microphone remote control for making calls, changing volume, and navigating tracks when using your Apple iOS or other mobile device. The headphones feature an 1/8" (3.5mm) plug for connecting to your smartphone or other mobile device. The headphones fold for portability and come with a soft storage pouch.