To use, simply unfold the antennas and turn it on. The LED Lights are color-coded (green, yellow, and red) so you know exactly how strong your signal is and the high-quality speaker provides a second method to determine the direction of your collars. This unit offers easy tracking for day or night use. The patented, fold down antennas, the splash proof design, and the CNC milled body allow this system to come with a 10 year warranty on the body and antenna, 3 years on the electronics (you may also choose to extend the 3 year warranty to 5 years for a one-time upgrade fee), and 1-year on all collars. The FCC rates the system as 12 miles line of sight, with 2-1/2 to 4 miles normal in the Ozark Mountains, and 4 - 7 in rolling mid-western terrain, and the full 12 miles in areas like West Texas. Like all Tracker receivers, the Classic is lightweight (14 ounces), and folds for easy storage into a holster or a pocket (cordora belt holster included).