We are Tricoop Industrial Co., Ltd.

We are based in Taipei, Taiwan.
We make 12 volt and 24 volt marine horns.
We’ve been making marine horns since 1984.
Our all-stainless steel horns are patented under US Patent No. 6349142.
Click to see our patent (USPTO link)
Our horns meet the ABYC spec A-23 standard.
Our products are 100% made in Taiwan.