With the introduction of a new HoundHunter model specifically designed for controlling tracking and trailing dogs, you keep the thrill of the chase within your control. The model SD-3225 allows control of up to six dogs from one compact transmitter. The compact transmitter features color-coded indicators that correspond to available collar strap colors. It is ideal for hunters who pursue bears, bobcats, mountain lions, and raccoons with multiple dogs. With a range of up to two miles, keeping control of a long range pursuit is easier than ever.