Pet trainer Rechargeable training Collar has been proven safe, reliable, comfortable, humane training and effective for all pet over 8 pounds/6 months. This system assists you in controlling your pet without a leash in a range up to 300m (Depending on the the way you hold the Remote Transmitter, the range may vary). At a push of a button, the Remote Transmitter sends a signal, activating the Receiver Collar. Using the Remote Trainer consistently and correctly, much misbehavior that your pet exhibits can be corrected or any basic obedience commands can be taught.