Compact and practical design with a single LED beat indicator and rotating dial speed selector. Tempo range of 40-208 bpm. "Click" sound, may be muted. Generates A440 tuning pitch. Includes built-in wire stand and 1/8" earphone jack (earphones included). 9V battery (not included). Size 2 21/64" x 3 31/32" x 17/32".