Basic Remote Trainer is ideal for convenient training around your home or neighborhood. The remote easily fits in the palm of your hand and features a convenient switch to instantly increase the correction strength by two levels. The water-resistant receiver uses a 6-volt camera battery (included), so it is always ready to go. The remote trainer offers 7 levels of correction to match your dog's temperament and a 150-yard effective range. You simply program the receiver to your choice of correction levels, and press the single button to activate the unit. A handy slider switch on the side of the transmitter increases the correction level by 2 in emergency situations. You may program the unit to sound a warning tone if you prefer.