THE MARINE HORN IS ALL STAINLESS TO PREVENT THE RUST PROBLEM. THEY COULD BE 12V, 24V AND 36V, 110DB AT LEAST. FOR OTHER TYPE, PLEASE REFERENCE http://www.yarton.com.tw
YAR TON ENTERPRISE. CO., LTD. 42, Lane 68, Wangsing Rd., Yongkang , Tainan 71041, Taiwan
