TC Electronic PolyTune Mini - stompbox chromatic tuner, 440 Hz fixed reference frequency, true bypass, tuningrange A0 (27.5Hz) - C8 (4186 Hz), simply strum all strings on your guitar at once and it will immediately tell you which strings need tuning, only for use with 9V power supply (optional # 108096) - not with battery, dimensions: whd 51 x 45 x 93 mm, weight: 160 g
