The shape and size of the headphones has been optimised to give a perfect fit and long-lasting comfort, and they come with ear adapters in various sizes so you can find the best fit for you.The adapters also provide effective noise isolation so you'll be able to fully immerse yourself in your music. This earphones are the perfect companion for all your favorite devices, combining sleek design, premium sound quality, noise reduction and maximum comfort. Acoustically engineered to produce exceptional frequency response for an enhanced listening experience. Designed to not only provide high quality sound, but also fits snugly into your ears. It creates a better sound isolation and minimizes external sound interference. Apple, Android, Blackberry and Windows smartphones and tablets, With 3.5mm audio devices.