Answer:
Spies and detectives do this to phones and musical shoes make this sound.
No matter how little or how much you use me, you change me every month. What am I?
What has to be broken before you can use it?
If you can get this professional's attention you can get where you need to go for a price.
What stays in one corner but travels around the world?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.