Tracker's Classic Supra Lite 2-Dog System is a favorite among Tracker customers. The Classic receiver has up to 12 miles range (line of sight) and is designed for tracking one or two dogs.

At 4.3 ounces, its lightweight design and motion sensor have made it popular for gun dog owners. The Classic Receiver folds down to the size of a flashlight and reports signal strength by both audible beep and LED lights. The Supra Transmitter has two antennas for greater range and is waterproof with 800-plus hours of battery life under continuous use.

Contact: Tracker, (800) 900-2113, www.trackerradio.com.