JBL has updated its Live earbuds lineup with three new models dubbed the Live Buds 4, Live Beam 4, and Live Flex 4. The trio covers different fits, ranging from sealed in-ear buds to a more open stem-style option. All three models also come with a touchscreen charging case that offers personalization options and quick access to earbud controls usually found inside the JBL Headphones app. JBL What can the smart case do? A charging case with a built-in display is not completely new territory for JBL. The company already used the idea on the Live 3 series , but the Live 4 lineup gives it a larger screen and JBL’s new Smart OS 3.0 software. The updated case supports swipe controls, so users can swipe in different directions to check notifications, skip tracks, adjust EQ settings , and switch between frequently used features. There is also more room for customization. Users can add favorite controls to the home screen, choose from new background themes, or set their own picture as the case background.…