Includes Red, Green & Blue Beacon Light Keep track of your dog in any hunting situation with a SportDOG beeper or beacon. Our easy-to-use Locator Beacon is perfect for nighttime, whether on the hunt or just during a neighborhood walk. The UplandHunter Accessory Beeper (SD-BEEP) lasts up to 80 hours and gives you the flexibility of 9 beeper options to choose from. The Deluxe Beeper Locator (DSL-400) offers 4 tone/beep options to choose from and fits any 3/4 or 1 inch collar for instant tracking on the fly. You'll never wonder where your dog has wandered off to again.