Biketones, another way to alert people in a friendly way.

Here's the Biketones story. Horntones released an MP3 car horn, back in 2007. The inventor's son wanted to have a custom horn for his bicycle. He started to invent such a horn in 2012 when he was 9 years old. After 4 years of searching out components, learning solid modeling and making several rounds of prototypes, the father and son debuted Biketones at the 2016 Interbike Show in Las Vegas. Available in 7 different colors, sounding 7 different fixed MP3 audio clips range from the familiar minions siren "Bee Doo, Bee Doo, Bee Doo", to the Dixie horn. Each horn retails for under $20. You can see and hear the 7 variations of the Biketones here:

http://www.horntones.com/biketones.html