The Vi React by 1MORE combines 1MORE's award-winning sound and design with Vi's revolutionary fitness app for the ultimate workout experience. Get real-time feedback and statistics via the Vi Trainer app that connects seamlessly with these headphones for professional workout coaching in your ears. Click the Vi button and ask "How am I doing?" and she'll tell you about your distance, time, speed, and more. With a wireless range of 35 ft., water and sweat resistance, and a 10 mm dynamic driver, these headphones are a must-have for any workout enthusiast.