Boss Dr. Beat Metronome
Compact and full of options. LCD display with two LED beat guides and push button tempo selector. Tempo range of 30-250. Digital "click" tone. Includes 0-9 accented beat patterns and 24 rhythm types. Generates C4-B4 and A438-445 tuning pitches. Includes adjustable volume control, auto shut-off after 60 minutes, belt clip, and 1/8" mini earphone jack. 3V battery (included). Size 3 9/16" x 2 7/16" x 13/16".