Ensure your dog has the etiquette of a crufts winnerr todays deal sends ultrasonic sound to dogs with the push of a buttonr helps coach pups to not jump up and control their barkingr integrated wrist strap for complete controlr weather resistant design so you can always keep it handyr range up to 50 metresr built in flashlight perfect for night time user runs on a 9v battery not includedr battery life will allow you 500 burstsr gadget measures 425 x 2