Developer's DescriptionBy tonycSeems to be having some issues with latest version of Android (9, Pie). Awaiting update for that version.Seems to be having some issues with latest version of Android (9, Pie). Awaiting update for that version.You choose from one of five bell sounds, most a single note. Or choose from notifications sounds supported by your phone. Also choose at what hour to start and at what hour to end the chimes during the day, so your chime won't go off while you sleep.Also includes volume and on/off switch.