Press the volume down key and touch the arrow.
You will see the Volume bar of each sound. Drag the slider to your preferred volume.
Copyright © 2018 TCL Communication. All rights reserved. Trademarks, including but not limited to BLACKBERRY and EMBLEM Design are the trademarks or registered trademarks of BlackBerry Limited and used under license by TCL Communication Ltd.* Based on mixed usage scenario. Many factors affect battery life, including network connectivity, application usage, feature configuration and battery age. Actual results may vary.