Earbuds case has Digital Display and it can control the Previous/Play/Next track, Volume up and down function, Noise Reduction mode(Off/Noise reduction/transparency),EQ mode(Normal/Rock/Pop/Classic/Jazz),Timer and alarm, Screen Brightness adjustment, Language switch mode(16),Lock screen wallpaper(5),Find my earbuds(earbuds will emit a pirecing sound),Time and Date setting, Next video, Like, Previous video, Take a photo, Flash Light and long press 10s the earbuds case's back button to restart the earbuds case. Digital Display is showing the battery level of earbuds and earbuds case. Earbuds can recharged 3 times in the earbud's case, Each earbuds including the touch area ,It can control the volume up/down, play/ pause, next track/previous track, noise reduction, voice assistant ,answer/end/reject incoming call. Incoming call prompt on the digital display and it can control the answer and reject incoming call. Including the Voice assistant (google or SIRI).Support ANC and ENC mode. When Battery low state alarm the earbuds.