HEART-RATE MONITOR It can provide continuous high-precision heart rate monitoring in real time in dynamic scenarios, including dynamic heart rate and RRI(R-to-R Interval) informations. Currently only AXLOIE S6 models support heart rate monitoring ADAPTIVE WORKOUTS Stick to your fitness goals with bodyweight, run, and walk workouts made just for you. WORKOUT ANYTIME, ANYWHERE Whether you’re home, on the road, or can't make it to the gym, we ensure you get a great workout, in 7 to 60 minutes, that can be done right from your phone or computer. UI CUSTOMIZATION In stereo mode, all of the controls can be customized in the App. In mono mode, the controls are fixed. EQ SETTINGS There’re more than 20 EQ settings you can choose in the App to optimize your experience while enjoying different music genres. EARBUDS FIRMWARE UPDATE The earbuds firmware can be updated in the App. You will be informed once the new version of firmware is detected when you connect the earbuds with the App.