Tuning: Automatic Tuning range: B0 to B7 Calibration: 440 Hz Accuracy: ± 1 cent Modes: Chromatic, guitar, bass, violin, C-tuned ukulele Feature: Built-in vibration piezo sensor, rotating clip pad to fixate the tuner on any guitar headstock or flat surface Display: Colour LCD Colour: Black Dimensions (W x H x D): 3 x 4.5 x 5 cm Weight: 22 g battery (CR2032