Get rid of your dog's unnecessary barking quickly with Dogtra No Bark Collar. It distinguishes your dog's barking from other surrounding noises, then automatically produces an electrical stimulation in response. There are 7 levels of stimulation, including a vibration warning for electrical-free training. The rechargeable Ni-MH batteries and charger are included. Shipped directly from manufacturer. Please allow 7-10 business days for delivery. These are FOB items. Additional shipping charges apply.