It is possible to adjust the volume of the voice prompts and the system notification tones. You can also decide whether the vibration alert should be set to ON or OFF. All of these functions are located in the same screen of the W&H BeHear smartphone app.
Tap the Settings menu. Tap the Device icon. For Voice Prompts: Scroll down until you find the Voice Prompts Volume setting. Slide the button to the right to increase the volume or to the left to decrease the volume. For Notification Tones: Scroll down until you find the Notification Tones Volume setting. Slide the button to the right to increase the volume or to the left to decrease the volume. For Device Vibration: Scroll down until you find the Vibration setting. Choose either ON or OFF from the drop down menu.