Super fast, stable and accurate tuning. Is used by Shredder Michael Angelo batio – The quickest players in the world – all the time. Excellent quality guaranteed. Bright, colourful display easy to read. 4 different colours printed screen to tuning quick and easy to make. Light enough to tune. Advanced Tuning Eigenschaften. Pitch A4 Frequency Range 430 – 450Hz. 4 levels flat tuning – B, bb, bbb, bbbb. Nano size, Wide Design. ⅔ Small iPhone size only. Beautiful fall design looks like a Schätzender jewelry. True bypass. Compatible with any 9 V, negative effect pedal energy adaptors.