Sound Sport Pulse Wireless Headphones, Red Makes your heart beat. Tracks your heartbeat. The music powers your workout. & powerful technology tracks it so you can push even further, with no wires in the way. These sport headphones feature a built-in heart rate sensor & Stay Hear+ Pulse tips to give you the information & stability you need to take your workout to the next level. Engineered to elevate your workout You put your heart into your workout. Your gear should be up for the challenge. A built-in heart rate sensor from Perform Tek® tracks your performance with high accuracy directly from your ear, so you can rely on these headphones to do more than power your workout. Optimize your intensity without missing a beat of your music, & focus on the real challenge: digging deeper. Stay tangle-free A quick, wireless connection gets you moving faster. Pairing to your Bluetooth device is easy with voice prompts, or if you have an NFC-enabled device just tap your phone to the inline remote. & you’ll get up to five hours of wireless power from the rechargeable lithium-ion battery. Inline mic The Bose Connect app displays accurate heart rate readings in real time from your Sound Sport Pulse wireless headphones, so tracking your performance is easy. You can personalize settings to make them all yours, & it’s easier than ever to pair, switch & control your devices. See how a simple, intuitive app can make all the difference. Unmatched combination of comfort & stability When you move, you want earbuds that stay put. Our Stay Hear+ Pulse tips deliver stability during your most intense workouts. Their redesigned shape stays comfortable & creates a gentle seal in your ear, which improves audio performance. & the extended wing provides support & stays secure. Built to keep up When you train, you’re going to sweat. Why should your headphones slow you down? These feature a hydrophobic cloth that resists sweat & moisture even during your most intense workouts. & with a durable build & weather- resistant design, they’ll survive the elements. So you can train through them.