SONY h.ear in ear type noise canceling earphone hi-res(high resorution) sound with remote control microphone MDR-EX750NA Combining High-Resolution Audio with noise cancelling technology, the h.ear in NC's are the ultimate on-the-move headphones for anyone who wants to lose themselves in music. Digital Noise Cancelling means you can enjoy supreme audio quality in any environment Hear only music, whatever's happening around you. Just turn on AI Noise Cancelling to let the h.ear in NC headphones assess the level of background noise, and they'll automatically choose the best setting for where you are. Take calls, switch tracks Tangle-free cable with inline remote and mic lets you handle calls and music.