The Dog Bark Deterrent Devices for Own or Neighbor's Dog Ultrasonic Dog Training device, model Tz-U36 by Heenzz, is a portable and compact device designed for use with dogs. It utilizes ultrasonic function to deter barking and comes in an orange color. The device includes one lithium ion cell and weighs 0.31 pounds, making it easy to use and transport. It is specifically designed for dogs and comes with batteries included, making it convenient for training purposes. Perfect for obedience training and reducing excessive barking in dogs.