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Which Vivo phones support LDAC?

How to turn on/off Hi-Fi?

What is Hi-Fi mode?

Which phones support Hi-Fi?

What is DeepField audio effect?

How to turn on DeepField audio effect?

Which phones support Apt-X?

How to adjust Equalizer?

How to adjust the Audio effect?

How about the quality of Hi-Fi and power consumption when Hi-Fi is on?

Why is Hi-Fi turned off automatically when the capacity of the battery is less than 10%?