Features:   Easy-to-use transmitter. All intensity level adjustments are made from a digital dial on the transmitter. There are 8 intensity levels. Level one is the lowest and level eight is the highest. Reliable stimulation effective for all types of dogs - no matter how heavy the coat. The dogtra 1800NC Series has a one-mile range. Waterproof collar receiver and transmitter. No external antenna on the collar receiver. Rechargeable, user-replaceable Ni-MH batteries. Over 3000 different identity codes to prevent conflicts with other collars.

Package Contents:     Transmitter Receiver(s) Battery charger and splitter cable Test light Owner's manual Carrying case