Korg GM-1-4PC Group Metronome 4 pieces

A metronome that synchronizes tempo across multiple devices—perfect for group practice.
Fits directly in your ear—the optimal device for musical instrument practice where you need to move around.
Canal type earpiece brings the metronome sound directly to your ear, making the sound easy to pick out.
Offers a wide variety of beats and rhythm variations—even odd meters are possible.
Use the jog switch to set the tempo intuitively.
Low power consumption for approximately 100 hours of continuous use.
A memory backup function that automatically saves your settings from the previous use.
Three sizes of earpieces (S, M and L) included.