SENNHEISER ELECTRONICThe best workout companion. Measures heart rate via your inner ear, so you always train at the right intensity level Jabra Sport Life App helps you plan, track and analyze your workouts and gives you ... more personalized and inspiring in-ear coaching Compatible with all leading fitness apps Immersive wireless sound powered by Dolby Comfortable, ergonomic design won't hurt your ears or fall out Voice Guidance-spoken prompts to guide you though training, pairing, connection and battery status Built to US military standards (IP55) -sweat-, shock-, and weatherproof to withstand exercise under any conditions Works with any Bluetooth enabled device (33-foot / 10m range) Built-in NFC enables effortless pairing with any NFC-enable phone Recharges via USB and lasts up to 5 hours per charge One-year manufacturer's limited warranty Train better with in-ear heart rate monitoring and coaching. Getting the most out of your training doesn't always mean working out faster or harder-it's about training smarter. The best way to improve and see results is to train at the right intensity level. By using a heart rate monitor, you can make sure you're not over- or under-training, and ensure that each workout is optimized to meet your goal. Jabra's next-generation heart rate monitoring technology measures your heart rate from your inner ear and it's proven through extensive third-party research to deliver clinical accuracy. Now, understanding your heart rate is as simple as putting on your headphones! Take your training to the next level with the Jabra Sport Life App. Optimize your workout with your Sport Pulse Wireless Earbuds by using Jabra's intelligent Sport Life App, a health and fitness app that ensures you're always training in the right heart rate zone. With the app you can plan, track and evaluate your workouts. Real-time coaching tips come through automatically over your tunes at key time and distance intervals and you can get instant updates just by tapping the button on the left earbud. Maximize your workout using your heart beat! Order your Jabra Sport Pulse Wireless Earbuds from Brookstone today! The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Brookstone is under license.