BBK was a well-known smartphone manufacturer, and it had also improved the sound quality. Bubugao mobile phones usually used high-quality audio chips and excellent audio decoding technology to bring a clearer and more comfortable listening experience. To determine which BBK phone had the best sound quality, one needed to consider the type of headphones and the audio output interface. If you are using high-quality headphones and the phone supports dual microphone noise reduction and active noise reduction, then the BBK Vivo phone may be the best choice. If you use an ordinary headset or a mobile phone without the relevant functions, then other BBK mobile phones may also have excellent sound quality performance. It should be noted that using a mobile phone to listen to music is not the best choice because the mobile phone may produce noise and interference that may affect the quality of listening to music. The best choice is to use professional audio equipment such as speakers or headphones.