✔ Compact Mini Size – Able to be hidden at the back of guitar headstock<br><br>✔ Highlight Display – Highly sensitive LEDs with wide viewing angles &amp; 360-degree rotation<br><br>✔ Robot Design - Easily to fit all shapes of guitar headstock<br><br>✔ Fine Compatibility - Suitable for guitar bass violin ukulele<br><br><br><strong>✔ Specification:</strong><br>   -Tuning Mode: Chromatic<br>   -Tuning Range: B0-B7<br>   -A4 Range: 436-445Hz<br>   -Power: 3V CR2032 button battery<br><br><br><strong>✔ Packing List:</strong><br>   1 x Tuner<br>   1 x Button Battery<br>   1 x Instruction Manual