Furret is the evolved form of Sentret. It has the ability to run extremely fast and slide through tight spaces with its long, narrow body. It's also quick at catching Rattata for prey. Despite Furret being the evolved form of Sentret, I would still expect a pretty high voice from this Pokémon, except not childish sounding like Sentret. It has more of a mature way of speaking, but still maintains a high pitched voice (not too high pitched) and has a lot of energy in there.