Dan I.
Great to honk at other trains passing by!
Items arrived on-time and in good condition. YouTube instructions for assembly were great and my son could not be happier with having a train horn to honk at other trains passing by. :-)

HonkUp is a brand operated by Symbiosis One, a U.S.-based e-commerce company specializing in custom-built handheld air horns and related accessories. We source genuine, brand-new tools and components from authorized retailers and trusted suppliers, then carefully modify and assemble products to create unique handheld horn systems designed for enthusiasts, events, sports, automotive use, and recreational applications.Every order is assembled, inspected, and tested before shipment. We focus on product quality, fast order processing, transparent communication, and responsive customer support.HonkUp is an independent company and is not affiliated with, sponsored by, or endorsed by any power tool manufacturer. Any third-party brand names referenced on our website are used solely to identify compatibility or the original platform used in our custom-built products.Symbiosis One is the legal business entity responsible for the management, operation, and customer support of the HonkUp brand. We are committed to maintaining transparent business practices and providing reliable service to customers across the United States.
Symbiosis One (honkup.com) has 13 customer reviews on Five Star Index, with an average rating of 4.8 out of 5.
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Excellent

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Showing 11 reviews with 5 stars · Clear filters
Dan I.
Items arrived on-time and in good condition. YouTube instructions for assembly were great and my son could not be happier with having a train horn to honk at other trains passing by. :-)
Johnny
Awesome products, great packaging, super fast shipping, and the best customer service in the business! Definitely will buy again! Thanks
William B.
Easy to order, decently priced and arrived quickly. Quality product, sounds great.
Jack O.
The product is great and worked very well. The only downside is that the compressor motor will not stay in the housing. It was not in it when I got it. It will not stay in now. So I took some tape and taped it in place but overall does everything. They said it would do and I would buy it again
Scott C.
Kit was perfect. Exactly as described!!!
Eloyd L.
I bought two 5 horn kits, had a problem with one of the triggers, customer service resolving my issue was fantastic. The five horns set up is extremely loud.Especially with a 60v 12ah Dewalt. Install, it's pretty straightforward.I did have to trim a little bit on the dewalt frame to make it work correctly but very minor. Definitely recommend they are a lot of fun.
Adonis G.
This is like the 3rd time I order from them, very quick at responding messages, they ship the items the same day I placed the order, no complaints at all.
Jeffrey H.
Went together very easy.Works great
Response from Symbiosis OneJul 7, 2026
Thank you, Jeffrey, for your purchase!