The SportDOG Brand® YardTrainer 100S single-dog remote dog training collar is specifically designed for stubborn, tougher or higher drive dogs, and includes a more powerful, higher level of static stimulation. It has a 100-yard range and is meant for basic command reinforcement and for dealing with behavioral problems of your dog in and around the house or at the park.
The SD-100S receiver-collar is totally waterproof and is for dogs weighing 8 pounds or more, with neck sizes of 5” to 27.5”. The handheld transmitter is water resistant and features 8 adjustable levels of static stimulation plus a tone-only button. The YardTrainer 100S runs on replaceable lithium batteries (3-volt) that will typically last for six months in the transmitter and one to two weeks in the receiver-collar. A built-in low-battery indicator alerts you when it's time to replace the batteries.