Our patented Sound Channel design comfortably seals in heart-pounding music but keeps you safe by allowing some noise in, like traffic noise for runners or bikers. The added safety benefit of being able to hear some ambient noises means you can don these in-ear headphones for any sport. This is pure audio adrenaline. Pure Monster Sound Our iSport Intensity in-ear Bluetooth wireless headphones offer the clarity, dynamics, punch, and power of Pure Monster Sound. Now, you can listen to the music that gets you pumped with sports earphones that don't require you to lug around your smartphone. Be free. Be active. Be strong. Stays In Your Ear The problem with a lot of headphones used for sport is that they fall out – usually exactly when you don’t want them to! Monster’s patented SportClip system is water and sweat resistant, and keeps the headphones firmly in place through your most rigorous workouts. The iSport Intensity comes with 3 sizes of formed in-ear clips to ensure you get the best possible fit. Be Seen The iSport Intensity features a flat cable with the same reflective properties as safety clothing worn in the service industry. If you’re out in low-light conditions, it increases your chances of being seen. 6+ hours of battery With iSport Intensity you can listen to hours of motivational playlists to get you through your run or ride. With easy charging via the Universal ControlTalk, you can easily keep your headphones charged at home, in the car, or even on the go with a portable power bank. Durable and Sweat-Proof The more you sweat, the better you feel, but the minerals and salts in sweat can damage sensitive electronics like headphones. Unlike others, Monster iSport Intensity headphones are sweat-proof and super durable. Easy to Store and Use One of the biggest frustrations with headphones is when you take them out of your gym bag, and have to spend time untangling the cable. Not only are these headphones wireless, meaning less cable anyway, but we’ve still made it tangle-resistant. Because you’re there to work out, right? We’ve also included a soft pouch for you to keep your headphones safe. Universal ControlTalk Monster’s iSport Intensity isn’t just for sport. We include a universal ControlTalk in-line remote so you can make and receive calls as well as control your music. Why? Because we understand you want a headphone that can be your companion at work, at home and on the commute as well as when you work out.