Manufacturer Description:

Dependable long-range training collar to control a number of dogs in the field at once. This is a reasonably-priced single or multi-dog unit that offers eight levels of stimulation with a selector style intensity control (8 Nick and 8 Constant modes). Features a waterproof receiver and transmitter with long-lasting rechargeable Ni-MH batteries, and a 1-mile range. Note : Please note that this unit cannot be modified to accommodate additional dogs at a later time. (e.g. A one-dog unit cannot be altered to a two-dog unit, etc.) Read more