Korg MA30 Ultra Compact Digital Metronome<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Highly visual liquid crystal pendulum </span></li><li><span class="a-list-item"> 13 different rhythms are built-in so you can practice to more than a click track </span></li><li><span class="a-list-item"> Rhythms include duplets， triplets， triplets with inner beats omitted， quadruplets， and quadruplets with inner beats omitted </span></li><li><span class="a-list-item"> Twelve reference pitches C4 -B4 for you to tune to </span></li><li><span class="a-list-item"> Adjustable calibration (438-445 Hz) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51dPhgqjjeL.jpg" noproxy>