Audio equipment manufacturer Revolabs will lease an additional 10,800 square feet at 144 North Road in Sudbury as it prepares to expand its 115-employee workforce by up to 20 percent over the next 18 months.

The expansion gives Revolabs a total of 34,000 square feet of office and lab space at the facility owned by Woburn-based Cummings Properties.

A subsidiary of Yamaha Corp., Revolabs develops wired and wireless audio products including microphones, VOIP and teleconferencing phones and accessories.