MAXROCK Noise Isolating Sleeping Headphones Earphones for Audiobook,Cellphones, Ipad and Audio Devices Total silicon house super comfortable to fit your ear for running, travel and sleep Untra 5mm dynamic drivers deliver crisp and crystal clear sound with wide range music style Ergonomic double layer noise isolating earpads block out ambient noise: snores, talks, machine Sleep and Travel Hit: the most comfortable fit with for Sleeping, Sports, Air Travel, Meditation and Relaxation easy to take with zipper carrying case Universal build-in microphone, compatible for iphone, ipod, Samsung, audiobook and most smart\audio devices