Watch the Sus It Out online guitar lesson by Brad Carlton from Chord Studies: Open String Chords Vol. 1

Keep those top two strings ringing open for this set of voicings but make sure you keep the low E muted or un-struck. These three open string B 7sus4, D 13sus4 and E7 sus4 voicings use only two shapes, which as you move them up and down the neck create different harmonic qualities because of those open B and E strings.