Peterson 403867 SP-1 StroboPlus HD Handheld Strobe Tuner with Optional Metronome Function<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> 0.1 Cent Accuracy (1/10 Of A Cent; 1/1000th Of A Semitone) </span></li><li><span class="a-list-item"> USB Rechargeable Lithium-Ion Battery </span></li><li><span class="a-list-item"> Built-In Microphone </span></li><li><span class="a-list-item"> Over 90 Preset Temperaments/Sweetened Tunings </span></li><li><span class="a-list-item"> Multi-Octave Stretch Tunings &amp; Buzz Feiten System included </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41tES65N-cL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/01G2aSYe7yS.png" noproxy>