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Product description:

The NEW Sport Basic G3 is undoubtedly the best value available in an American made training system. It now allows you to buy a 1-dog unit and add up to two more collars as you need them. The top dial on the new rubberized, waterproof transmitter lets you choose from 10 evenly spaced intensity levels. The three black buttons provide continuous and momentary stimulation as well as the new louder aversive buzz sound. The lower dial is your dog selection. Black for dog one, red for dog two, and blue for dog three. One black collar strap is provided with your 1-dog unit. Provides a full ½ mile range using the same rugged waterproof collar as the more expensive G2 EXP units. Transmitter uses 9-volt battery. Purchase extra receivers, collar straps and charging cradles as you need them!