Heart Rate Monitoring Magnetic Sports Ear Hooks 24 hours Battery Life Motion Beat Mode Real time notifications IP55 Amazfit PowerBuds: Hear the BeatsHeart Rate Monitoring During Exercise | Magnetic Sport Ear Hooks | Superior SoundPrecise Heart Rate Monitoring During Exercise.Heart rate is an important indicator while monitoring exercise, so the Amazfit Powerbuds are equipped with a PPG heart rate sensor to precisely monitor your heart rate and keep you informed of your workout status. You will also get voice notifications when your heart rate exceeds the pre-set warning value, making your workout safer and more effective.Magnetic Sport Ear Hooks.Firm & Comfortable, Tailored to Exercise.The Amazfit Powerbuds shell is made of smooth radium carving texture, bringing a sporty energy to your workout. The unique magnetic split ear hook design enhances the firm fit and stability of the earphones and prevent them from dropping during intense exercise. In daily use, the ear hooks can be removed