LRAD Corp., the publicly traded maker of high-volume sound equipment for governments and militaries, reported net income of $291,000 on revenues of $4.49 million for its second quarter, which ended March 31.

In the same quarter of 2014, LRAD (Nasdaq: LRAD) reported net income of $526,000 on revenues of $5.39 million.

Revenue from its omnidirectional mass-notification product line, called ONE VOICE, nearly doubled to 15 percent of total revenue, the company said in a statement.