Intellitouch PT10c Mini Clip-On Tuner<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Easy and Accurate Tuning using Vibration; It Ignores Background Noise </span></li><li><span class="a-list-item"> Backlight changes from Red to Green when in Tune </span></li><li><span class="a-list-item"> Compact - easily fits in Instrument Cases </span></li><li><span class="a-list-item"> For Electric &amp; Acoustic Guitars， Mandolins， Basses， Banjos， &amp; More </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/410tVs7dU9L.jpg" noproxy>