PetSafe Remote Spray Trainer has been proven safe, comfortable, and effective for pets of any size. This system assists you in controlling your pet without a leash in a range up to 300 yards. In addition to having 4 levels of spray, it also incorporates tone to reinforce training. At the push of a button, the PetSafe Remote Transmitter sends a signal activating the Receiver Collar to spray. The distracting lemon flavor mist corrects your pet's behavior. This product is good for dogs of all sizes and works with all dog breeds. Your pet will no longer exhibit any misbehaviors and any basic obedience commands can be taught by using PetSafe Remote Spray Trainer.System includes adjustable collar, remote spray transmitter, lemon spray can, battery charger, lanyard, operating guide.Special Features: Rechargable Batteries in both the Remote Transmitter and Receiver Collar 300 yard range 4 levels of spray Waterproof Remote Transmitter and Receiver Collar Adjustable collar for neck sizes up to 28"