The warning sounds from the Drive One device are high-frequency, so they are as clear as possible. However, everyone's hearing is different, so not everyone finds the sounds equally clear.
That is why, by default, we also play the sounds through your phone or your car's speakers if your phone is connected to the car. If you find the Drive One device's sounds too quiet, we recommend adjusting the volume on your phone or in your car to suit your needs.
Note: Adjusting the volume on the device itself is only possible on Drive One 2 and newer.
Follow this guide to adjust the sounds from your phone/ connected speaker system.

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