Tuner the size of a cigarette pack;LCD-needle display 46x21 mm;Chromatic, for all instruments;Additional changeable for guitar (also for 7-string), bass (also for 5- and 6-string) and violin (mandolin);Automatic/Manual tone indicator;Flat-Tuning up to 4 halftones lower;Jack plug input, integrated microphone;3 additional LEDs for fine tuning;Tuning range: A0 (27,5 Hz) ~ C8 (4186,00 Hz);Precision: +/- 0,5 Cent, Calibration: 433-447 Hz;Black-matt;Measurements 88 x 56 x 20 mm, weight 100 gr;Supplied with 2 x 1,5 Volt AAA batteries;