Easy to use, the Wittner MT50 metronome prominently features a tempo dial that adjusts between 40 to 208 beats per minute. The MT50’s speaker produces a loud “tick” sound, which is easier to hear in context than the “beep” produced by most other electronic metronomes. The MT50 also has a flashing LED beat indicator, which can be used for silent practice or along with the speaker for added visual reference. The MT50 also generates an A=440 reference tone for tuning. A built-in wire stand allows convenient upright positioning. Earphone included. Uses one 9V battery (not Included).