SailsON Electronics Premium Ceramic iFX5 Waterproof Sport In-Ear Headphone with Mic Stereo Earbuds for MP4, MP3, iphone, Samsung, Laptop and More (Black) This headphone make of premium durable ceramic and flexible cord. It is with iFX5 level waterproof feature and in-ear earhook funtion, perfect choice for running, hiking, biking or other outdoor activities. Design with heavy bass, three frequency balance high quality sound, and noise cancelling features. Built in microphone and multi-function control: Answer calls/End calls/Pause/Next or Previous. 3 X Different Size Earbuds ensure secure fit in all ear sizes.