Why have physical volume buttons been replaced with a volume control zone?
Applicable products：
HUAWEI Mate 30 Pro(dual sim card 8gb+256gb、dual sim card 8gb+128gb)，HUAWEI Mate 30 Pro 5G(dual sim card 8gb+256gb、dual sim card 8gb+128gb)
Applicable products：
| Why have physical volume buttons been replaced with a volume control zone? |
It is a development trend for phones to have the volume buttons virtualised. The design not only contributes to a compact, streamlined phone appearance, but also allows left-handed users to easily adjust the volume.
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