Meideal TCpo20 Electric Acoustic Folk Guitar Capo Tuner - Black + Bistre
Technical specifications: -Tuning item:a. Tuning uder special key: C(Chromatic)b. String instrument tuning:Guitar(G) Bass(B). -Tuning range:A0(27.5Hz)-C8(4286Hz). -A4 calibration: 430Hz-450Hz;Tuning mode:Clip;Tuning accuracy:+/-1cents. -Half-note tuning item:b bb bbb. -Power:1 piece CR2032 (3V).