This bark collar detects barking by using our Silent Partner patented technology that quickly determines your dog's unique barking style and filters out all the rest to avoid any false corrections With 3 selectable modes of operation (Temperament Learning, Progressive Correction, and User-Selected) and 10 levels of static stimulation you can choose the type of bark control that works best for your dog's temperament The SBC-R is waterproof and submersible to 10 feet, fitting dogs 8 pounds or larger with neck sizes 5" - 22" Rechargeable lithium-ion batteries charge in 2 hours and last 200 hours per charge; It also features a low battery indicator so you know when it is time to charge The detailed operating guide and a locally based Customer Care Center, reachable at 844-209-4636, provide support when you need it By designing our products in the field, with heat, cold, rain, snow, dust, mud, and wind in mind, SportDOG Brand has become one of the most recognized brands in the electronic tracking and training categories, making the promise to create "Gear The Way You'd Design It"