Pure Sound: The crystal clear sound and enhanced bass are what every ears needs Bluetooth 4.0: Provides a better signal strength that enables high fidelity stereo music and clear speech Perfect Fit: The unique design with the ear hook ensure no more loose failing earphones Light & Portable: As light as it gets. You'll forget you are even wearing it Noice cancellation & Inbuilt Microphones:Talk hands-free with inbuilt microphones, Free your workout with Pebble Sports wireless headphone. Designed for comfort along with performance during rough workout. It comes with easy to wear In-Ear neck hooks design to ensure perfect fit. Comes with premium quality sound drivers and Bluetooth 4.0 Technology which ensure high fidelity stereo music with clear speech. As for the compatibility it is compatible across all devices irrespective of their platform (Android or iOS) be it a tablet, smartphone or personal computer.