- Model: AT-320B<br />- Plastic case material<br />- 1.1" red backlit screen<br />- Tuning mode: Chromatic 12 note， 7-string guitar (including 6-string guitar)， 6-string bass (including 4-string bass)， Ukulele (Key C)<br />- Measuring range: A0 (27.5Hz)~C8(4186.0Hz)<br />- Tuning: Clip (tune by vibration when clipping on instrument)， Mic (tune by internal mic detecting instrument sound)<br />- Pitch range: 435Hz~445Hz (1Hz steps)<br />- Flat: b， bb， bbb， bbbb<br />- Detection accuracy: +/-0.5 cent<br />- Powered by 1 x CR2032 battery (included)<br />- Comes with Chinese/English manual<br /><br />                                                                                                                                Dimensions: 1.85 in x 1.69 in x 0.59 in (4.7 cm x 4.3 cm x 1.5 cm)<br />Weight: 0.81 oz (23 g)<br /><br />