SportDOG Deluxe Hunting Beeper Collar, DSL-400 Radio beeper system for hunting with dogs; indicates whether dog is pointing a bird or running Dog's collar-transmitter signals hunter's handheld receiver to beep when dog is pointing or running 3 point/run beep-modes signal when pointing, when running, and other combinations Standard beep tone, Hawkscream, Bob White Call, or Trill 400-yard range for long bird-retrieval; low-battery detector; waterproof