Get full control of your dog when training or hunting with this full-featured collar. 100-yard range; 100 yards without the receiver antenna (range varies depending on weather, terrain, and other factors). Provides 1 continuous and momentary correction levels with six levels selectable at the transmitter. With a fully waterproof receiver and transmitter, this is an ideal choice for water retrievers and wet field conditions. Includes waterproof Pelican carrying case, leather transmitter holster, and Sport Dog Training Book. Note: The image shows the transmitter that is standard for this unit, but it also shows both collars, for large (#SD15S) and regular dogs. This unit will come with one collar, represented by the top image, to fit a small to regular-sized dog.