Most boat helms have just one clip for the VHF radio mic, but I have two clips on my boat. This gives me the option to stow the mic out of the way or keep it handy. One clip is on the opposite side of the helm for those days when I don't feel like talking much on the radio. The other is closer, making the mic more easily accessible from the wheel for times when I need to communicate often. You can buy spare mic clips for as little $2, and they are compact enough to install just about anywhere on the helm with just two small self-tapping screws.