the atmosphere is electric and it’s a great show to take any young adult or youth group. i ran into this issue when i first wanted to invest, and it almost stopped me from getting. the image is printed directly onto the case and wrapped around the edges for a beautiful presentation. the idea is that your dog will associate the unsafe behavior with a little uncomfortable shock and stop the action or behavior until they no longer need a reminder. no need to sign up for groups of six or less…call 408-298-7657 to schedule a group greater than six. 