C6 Open

C6 Barred (the audio example is D6 with it's root on the 5th fret)

Fret/Chord Chart

You can determine the name of the chord when the root (lowest) note is played on the frets in the chart below.

Fret	1	2	3	4	5	6	7	8	9	10	11	12	13	14
Chord	-	-	C Open	C#/Db	D	D#/Eb	E	F	F#/Gb	G	G#/Ab	A	A#/Bb	B