3 Modes: Beep, Vibration, ShockYou have the option to use 3 modes. These are beep, vibration and shock. Both the vibration and shock modes have levels that range from 0 to 100 and they are both used for personalised training. When you find the best level that your dog responds to just stick with it. | 3 Memory SettingsThere are 3 memory settings - A, B and AB. This means that not only you can use this collar to train up to three different dogs with three different settings but you also don't need to reset them. | Long Training DistanceThe antenna that we offer has a very advanced design and it can reach up to 2,500 feet. You can use it anywhere, whether it's in your park, backyard or even the beach. |