Get the beat.
The Boss Dr. Beat DB-30 Metronome makes it easy to accurately keep time during practice. Built small for slip-in-your-case portability a headphone jack lets you practice anywhere silently. It's easy to use too with a large LCD and controls for power volume start/stop tape/mute rhythm/beat note/pitch and tempo/value plus lights and on-screen needle for visual feedback. More than just an adjustable click Dr. Beat can lay down 9 different patterns 24 beat variations rhythm styles and combinations to play with.