Chromatic:A1 (55Hz) - A6 (1760Hz )Guitar: 1E 2B 3G 4D 5A 6EBass: 1G 2D 3A 4EPitch shift: 436Hz 438Hz 440Hz 442Hz 444Hz Indicator: LCDDC Power: DC 3V ( Battery AAA*2)Dimension: 103mm*67mm*19mm Weight: ¡Ý 60g Tuning error: less than 0.8cent