Korg SHCS100 Sledgehammer Custom 100 Clip On Guitar and Bass Tuner<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Amazing battery life of approximately 100 hours </span></li><li><span class="a-list-item"> Ultra-high tuning accuracy of +/- 0.1 cents </span></li><li><span class="a-list-item"> 3D visual meter creates a revolutionary visual effect with three meter display modes </span></li><li><span class="a-list-item"> A clip mechanism that provides strong holding power as well as flexibility </span></li><li><span class="a-list-item"> Calibration， auto power-off， and memory backup functions </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41qd%2BhT81bL.jpg" noproxy>