-PLAYS SOUND! ("Tocks" like a clock)!
-EASY TO SEE in your peripheral vision!
-Plays while iPhone/iTouch is LOCKED!
-Accurate to many decimal places!
-The metronome will run better if you put your phone/touch in AIRPLANE MODE, which can be done in the "SETTINGS" app on your phone/touch. When the device checks for email (for example), the metronome will slow down. This and other conflicts are resolved in AIRPLANE MODE.