Bass Cannon

 A booming echo blasts from your hand speaker, dealing 1d10 force damage plus your CHA modifier. At 6th level, you become more comfortable with your hand speakers and gain the ability to use them in rapid succession, adding an additional bass boost per attack at 6th level, 12th level, and finally at 18th level. Once you have the ability to hit twice you may instead combine 2 attacks into a single more powerful blow, dealing 2d10 thunder damage and forcing the target 10 ft. away from you.