Features ASA plastic covers for impact and UV resistance. Horn wiring has no polarity, so the negative or positive wire can be attached to either side. At 108 decibels and a frequency (Hz) of 440?20A, meets US Coast Guard's COLREGS and ABYC standard A-23 for use on vessels under 12m (39'). 12VDC. 12VDC. Finish Black Size 3 3/8" x 4 3/8" Rating 108 db

Price is per unit.Also available in a case of 12. Please call us if interested in case pricing.