Ring Outdoor Siren?

How is it possible that a company that specializes in alarm systems, doesn't have a product that is central to the effectiveness of alarm systems; a loud outdoor siren? It seems like pretty low-hanging fruit to develop such a product so I'm wondering why Ring has chosen not to do so.I live in the the Catskills (upstate NY) and my neighbors aren't close enough that they would hear the internal siren. While I appreciate every other aspect of the ring system, I'm considering moving to another brand that has outdoor sirens.