The new MM-2 is a personal metronome that fits on your ear, allowing you to play to a beat that only you can hear.• Compact, personal metronome• 39 tempo steps in a 40-208 BPM range• Beat Values: 0, 2, 3, 4, 5, 6, 7 beats, 8th notes, triplets, 16th notes, +/-2% accuracy • Easy-to-adjust volume control• Piezoelectric speaker• Ear hook comfortably fits either ear• Ear pad reduces sound leakage, improves sound quality and stability• 2 interchangeable color caps• Includes 3V lithium battery