A harmless way to teach your dog to be the best pup in the world. If your pet doesn't know how to stop eating garbage, pull the leash, and bark all the time you feel tired, PetSpy T500 citronella collar will help you correct the dog's behavior. The system is very straightforward to use. The e-collar has three training modes - beep, vibration, and citronella spray. All of them clear of danger for your pet. The reflective collar is highly visible in dim or dark conditions and will keep your dog safer at night. It's a great fit for all dog breeds from 8 to 140 pounds. Citronella spray is safe for the dog's nose and doesn't irritate eyes. Spray mildly irritate the dog's nose, your dog distracts, confuses and stops barking. You can recharge your collar fast in any place with the included USB cable. Light indicator on the collar will help you to find your dog in the dark. But please don't allow your dog to swim with the collar on. There is a microcircuit inside the unit that triggers a miniature valve releasing a spray of citronella whenever you press the button on the remote. There is no shock administered. The dog feels, hears, and smells the unpleasant citronella spray. Citronella anti-bark collars are more humane than collars that produce an electric shock.