Fits in a shirt pocket. Flashing LCD or loud audible beat. Range: 30 - 250. Large easy to press buttons. 10 Different beat settings 1,2,3,4,5,6,7, 1/8,1/16 & triplet. A - 440 tuning pitch. Size: 3 1/4"h x 2"w x 1/4"deep. Earphone jack 2.5 mm. (Earphone not included). See below. Battery included. A coin inserted in the back acts as a stand.