[Anti barking collar only can be activated by your dogs]: This smart bark collar's sensor can be triggered only when your dog's sound combined with vibrations of sound from it's throat (not just sound). So there is no more worry that other dogs will activate the sensor. Smart collar will only work for your dog. [Shock or no shock, vibration or no vibration, multi levels available]: 7 levels sensitivity and 0-7 levels vibration/shock modes (0 level means no shock or no vibration). With LED digit display, you can choose different mode or different level according to different dog. [Humane and harmless bark control collar]: This no bark collar will entry sleep mode for 1 minute if it continuously activate your dog 7 times within 1 min to ensure your dog's safety. Another safe and smart point is REFLECTIVE design, enhance visibility for your dog in dark or dimly lit areas, protect your dog and keep it safe. [Rechargeable and rainproof]: Built-in USB rechargeable battery can be full charged within 1 hour to provide 14-20 days use. This no bark collar is also lightweight and rainproof. Your dog will feel no burden and can wear it every day and every where even outdoors. [Upgraded version]: Unlike others traditional bark collar, Kobwa collar have digital tube which shows gears of battery electricity ,vibration ,shock and sensitivity. It is very convenient to adjust gear and provide the best protection for your dog.