Lot's off inbuilt sounds and verity of options it plays sound and speaks time every quarter to half and full hour. - Westminster chime each quarter-hour - Realistic Live Wallpaper - Many inbuilt clock chime - Allows to choose custom chime from device - Plays Quarter, half and full hour - Speaks time with custom title - Hours-only option - Wake screen to stop - Also can be stopped from notification bar. *Note : This app works in background so for some of devices (Running MIUI & Honor etc.) needs to keep in auto start or keep locked in recent menu.