HyperGear Flex Wireless Bluetooth Earphones with Wrap Around Flexible Band and Built-in Mic A Trusted American Brand ULTIMATE ATHLETIC EXERCISE EARPHONES: the absolute best in sports headphones technology; engineered for HD sound and to fit perfectly even during rigorous activity. UNIVERSAL COMPATIBILITY:compatible with any Bluetooth enabled device, including your iPhone , iPod , iPad , Samsung Galaxy , Android and more! HD SOUND WITH NOISE ISOLATION: powerful stereo sound reproduction and noise isolation technology for high-quality precision bass and symphony sound straight to your ears. BLUETOOTH CSR V4.1 WIRELESS: for high performance sound and clearest connection. NOISE CANCELLING MICROPHONE: these earbuds feature a noise cancelling microphone that reduces distracting ambient sound for crystal clear calls. SWEATPROOF AND DUSTPROOF: features a nano coating sweat proof construction to provide the ultimate durability. REMOVABLE SPORTSBAND: Engineered for perfect comfortability, these sportsband headphones provide lightweight, ergonomic support, and includes three sizes of earbuds to fit into the contours of your ear perfectly.