KORG In-Ear Metronome IE-1M, an Ultra-compact Earphone-style Metronome Perfect for Playing Musical Instruments, Practicing Solo, Jogging, and

Fits directly in your ear. An ultra-compact in-ear metronome ideal for individual practice. Practice your instrument by listening to the rhythm directly in your ear. Intuitively set the tempo with the jog switch. Fits a variety of ear shapes. Provides a secure hold. Powered by a coin-type lithium battery, it allows for approximately 200 hours of continuous use. Also features a memory backup function. Ear pads and a carrying case are included.