The Dogtra 2200NCP is designed for field trial, sporting dog and K-9 training units for mild-mannered to stubborn disposition dogs.  It can be found in the training arsenal of top professionals and amateurs alike. Features a 1-mile range, nick and constant stimulation, Dogtra's patented pager/vibration mode, and rechargeable Ni-MH batteries. The system includes a handy charger that charges both the receiver and transmitter at once from a standard wall outlet. A voltage converter is available for our international customers.