Trumpet Horn 12V or 24V 15013: S.S. single, 400mm x 102mm x 127mm, 380HZ+20, 115dB #20/CTN 15023: S.S. dual, 463.5mm x 102mm x 127mm, 400HZ+15, 350HZ+15, 105+5dB,115+5dB in 1.4M Max. 10A at 12VDC Max. 5A at 24VDC #10/CTN