Neewer® Mini Chromatic Guitar Tuner Pedal True Bypass with Visible Luminous LED Display for Electronic Guitar， Silver<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> The luminous LED display allows good visibility even at night or in high light situations </span></li><li><span class="a-list-item"> True bypass， improved analog circuit， real signal， no loss of tune. </span></li><li><span class="a-list-item"> Features accurate tuning function， quick and responsive </span></li><li><span class="a-list-item"> Suitable for wide range tuning </span></li><li><span class="a-list-item"> Power Supply: DC 9V (negative in the center )(NOT INCLUDED) </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41dDJCL3NGL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/418X0Hcw0dL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41e6Ad2Pk-L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/410HAO35vcL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/412SsoLlErL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41LJ-Lf1TpL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XTkU2T2KL.jpg" noproxy>