Perhaps you know that a musician needs to check sound before they put on a show. So today the Tuner we recommend to you is designed for tuning chromatic? guitar? bass?violin. Featured with high quality material and compact size? it can 360-degree freely turn. This Tuner adopts automatic tuning equipment ? easy for operation. This Tunerbrings you much convenience. You¨d better pay attention to this valuable item.                                    Features            New and high quality? never usedElectronic acoustic tuner? fast and accurateTuner features a 360-degree rotating displayWhite and green backlightPortable design? convenient to carryFit for guitars? basses? violins? ukuleles? chromaticsPowered by one CR2032 3V battery (included)                                                            Specifications            A4 frequency    440Hz    <br>Tuning range    A0 (27.5Hz) - A6 (1760Hz)    <br>Tuning items    C? B? G? V? U    <br>Battery    CR2032 3V    <br>Size    1.38" x 1.89" x 2.13"    <br>Color    black    <br>                                                            Package Includes            1 x ENO ET-33 Nini Clip Digital Guitar Bass Violin Tuner1 x CR2032 3V battery1 x User manual