A crowded track or urban sidewalk can take the thrill out of pounding the pavement for those who enjoy jogging. A bike bell without the bike, Runbell offers an alternative to yelling, “Get out of the way, mindless headphone zombies!!” that’s not only more pleasant, put probably also offers safer and more satisfying results. The brass bell projects a clear tone that can still be plenty annoying to path blockers when struck repeatedly, but it will also likely be construed as having the intention of being polite so that breaking into a sprint in order to gain a clean getaway from street gangs can be avoided. For $20, backers get one product with an expected delivery of September 2014.