SWIFF A2G New Clip-on Guitar Tuner - Black (1 x CR2032)
Feature: New clip-on design;12 gear360 degree rotating shaft and the angle can be arbitrary adjustable; Tuning speed wide range precise; Auto power off function; Specification: Tuning range:C2(65Hz)~A6(1760Hz);Tuning mode: Auto; Precision:+/-1 cent; Response time:20ms; Calibration:;A4=440Hz435~445Hz;