GT-4 Digital Tuner for guitar or bass or violin.
Frequency for A tone:430Hz 450 Hz
Pick up: "MIC"and "CLIP"
Tuning mode: Chromatic, guitar, bass and violin
Size: 53 x 80 x 43mm
Power: button battery (Cr2032)
Turn 360 degree freely
Mini shape, easy to take

Size: 53*80&43(mm)
Color: Black