Guitar Smart Tuner Automatic Ukulele with USB Cable Musical Instrument AccessoriesBlack Specification: Item Type: Guitar Smart TunerColour: Black Material: Metal + plastic Battery: 3.6V Lithium battery/2600mah Power Supply: For USB1.0A(1) Tuning Mode Instrument Selection Tuning Automatic Wooden Guitar 6E,5A,4D,3G,2B,1E Electric Guitar Classical Guitar Ukulele 4G,3C,2E,A 12 Average Law CC(#),DD(#),E,FF(#),GG(#),AA(#),B (2) Tuning Mode Instrument Selection Tuning Semi-Automatic Wooden Guitar 6E,5A,4D,3G,2B,1E Electric Guitar Classical Guitar Ukulele 4G,3C,2E,A (3) Tuning Mode Instrument Selection Tuning Special Tuning Wooden Guitar 6th E,D#,D,C#,C 5th A,G#,G 4th D,C#,C,D#,D,E 3rd G,F#,F 2nd B,A#,A,C 1st E,D#,D Package List: 1 x Smart Tuner 1 x Head 1 x USB Cable