yuwell BP Monitor YE680B —— How to set up time date and turn off the voice or turn down the voice

yuwell blood pressure monitor YE680B can turn off the voice and turn down the volume. It has 5 sound levels, 5 means the maximum volume, 1 means the minimum volume. 1. Press “Memory” button and “Start” button at the same time for 3 seconds to enter setup mode 2. Press “Memory” button to change the value 3. Press “Start” button to confirm the setting Please kindly note you have to set the time first, after you finish time setting, then you can turn off the voice or turn down the volume