Top features: - Noise isolation helps to block out unwanted external noises - Built for working out with a durable sweat-proof design - High-performance microphone lets you answer calls on the move Noise isolationYou can immerse yourself in your music while using the iSport Achieve as they provide 90% sound isolation. This helps to block out unwanted noises around you that could distract you from your workout, letting you focus all of your attention on achieving your personal goals.Built for working out with a durable sweatproof designThe iSport Achieve can keep up with even the most challenging work out session. Durable and sweatproof, they feature Monster's patented SportClip system to keep the headphones firmly in place. A flat, tangle-resistant cable ensures that you won't get caught up in the wires while working out, leaving you to focus on the exercise.High-performance microphoneTake calls on the move using the built-in high-performance microphone, saving you the hassle of having to remove the headphones to answer your phone.The low-profile fit of the iSport Achieve mean that you can wear helmets, goggles, beanies and other head gear in comfort whilst enjoying your favourite music.