The DSL-400 add-on Deluxe Beeper locator gives you maximum flexibility with a high and low volume option, 3 settings for beep duration, and 4 different tones. The hunting beeper collar uses a 3-volt lithium battery that provides 60-100 hours of on-time. This run mode beeper doesn't require a remote to use — just slip it on your dog and set it to silent, 5-second, or 10-second beep.