Kala Klipz Clip on Tuner (Blue)<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> SETTINGS: Chromatic， Guitar， Bass， Violin， and Ukulele </span></li><li><span class="a-list-item"> RANGE: A0 (27.5hz) to C8 (4186hz) </span></li><li><span class="a-list-item"> TOLERANCE: +/- 1 cent </span></li><li><span class="a-list-item"> SIGNAL RECEIVED BY: Vibration via clip </span></li><li><span class="a-list-item"> POWER SUPPLY: 1 - CR2032 battery </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41fvlHx3PJL.jpg" noproxy>