24/7 Heart Rate Monitoring/Blood Oxygen Monitoring/Blood Pressure Monitoring The Smart Watch can instantly detect the heart rate, so that you can see your heart rate change during exercise, keep your heart rate in the corresponding area when you exercise, reasonable control of motion intensity.Using Smart Watch detect your blood oxygen saturation, blood pressure status and adjust your body status. HIFI Music ExperienceBuilt-in dynamic speaker unit, professional tuning is better for high, middle and low tri-band. Clearer sense of three-dimensionality. Answer Important Calls and Text Messages in a Timely MannerAfter connecting to Bluetooth, the incoming call will vibrate to remind and display the phone number; SMS reminders, Facebook, Twitter, and other APP notifications, easy to check messages while driving/Hiking/Working. Multiple Personality Watch DialsThe APP multiple colorful dials are synchronized, and different interfaces can be changed. Troubleshooting Steps: When the smartwatch or earbuds cannot be connected, charge abnormally, or cannot be used normally, please use the following methods to troubleshoot and initially solve the problem according to the method. Step 1: Disconnect the watch, earbuds and mobile APP. Step 2: Check whether the charging compartment is clean. If there is dust or other foreign matter, please clean the dust under dry conditions. Step 3: Check whether the smartwatch and earbuds are connected to their respective Bluetooth devices. Do not make incorrect connections. Step 4: Check whether the distance between the smartwatch, earbuds and mobile phone is within 10 meters. If the distance exceeds 10 meters, disconnection will occur. Step 5: Reconnect the watch, earphones and mobile APP. Through the above troubleshooting methods, most unusable situations can be solved.