How do I make my clock vibrate?

please On the alarm you want, tap the Down arrow . Name: To name the alarm, tap Add label. Repetition: To make the alarm repeat, tap the days of the week. Vibration: To turn alarm vibrations off or on, tap Vibrate.All of our vibration clocks featured with an extra loud bed shaker, it used in different usage application, we have kids vibrating clock which has cartoon cat and hand rope on the surface