The DT Systems 1145DT Bark Collar helps your dog learn the difference between good barking (for protection) and bad barking (prolonged and loud). This barrk collar offers a safe and humane form of bark control to stop dog barking.The bark collar picks up the vibrations from your dog’s vocal chords as it barks. The vibrations cause the bark collar to send an electronic signal (a static shock) to your dog. Your dog will quickly learn that barking causes the signals, and that not barking is the way to avoid the signals. Train using digital technology: 8 intensity level adjustments: Use the setting that matches your dog Easy to use: Digital numeric display Train with consistency: Data memory system saves last used setting Magnetic on/off switch Train with precision: second corrective stimulation every time Adjust sensitivity probes for your dog’s barking Train safely: 3 second safety delays between corrections Train with convenience: Fits dogs 15lbs and up Replaceable 6 Volt Battery included Waterproof 5.5 oz receiver 6 month warrantyPowered by eCRATER . List your items fast and easy and manage your active items.