What is the vocal range of Axl Rose?

Could you elaborate on the topic of Axl Rose's vocal range? Specifically, I'm curious about the range of notes he is capable of singing, both in terms of the lowest and highest notes. Does he possess a particularly wide range, allowing him to traverse multiple octaves with ease? Or is his range more focused, yet distinctive in its own way? Additionally, how does his vocal range contribute to his overall singing style and musicality? Would you consider it a defining characteristic of his voice, or merely one aspect among many? Lastly, are there any techniques or training methods that he may have employed to develop and maintain such a vocal range?