InventHelp Inventor Develops New Loudspeaker Monitor for Drummers (SGM 181)

PITTSBURGH, Nov. 28, 2022 /PRNewswire/ -- "I thought there could be an inventive new product for drummers who prefer hearing their monitor mixes through speakers," said an inventor, from West Terre Haute, Ind., "so I invented the SPEAKER ROCKER D&M. My design would be easy to mount and it...