Our Story Cambond Dog Training Collar You have a naughty dog that shows bad behavior such as biting a sofa or other objects in the house , bark even at night, suddenly run away? Have you tried to train your dog but to no avail? The Cambond Dog Training Collar is a useful training tool to help correct barking, walking, leash training, sitting, aggression and other behavioral obedience. Very safe and easy to use. Important information: 1. Not used for training puppies under 6 months old. Recommended for medium and large dogs over 20 lbs. 2. We suggest you use vibration/tone/light mode to train your dog. Shock mode should always be the last mode to use. 3. The shock model has 0-99 levels, be very careful if you want to test high level. 4. Only let your dog wear this collar during training and remove it after training is finished. 5. Please avoid leaving the collar on the dog for more than 8 hours per day and try to reposition the collar on the pet’s neck every 1-2 hours. 6. If the hair