SportDOG Deluxe Bark Control - SBC-18 The NoBark 18 bark control collar has 18 levels of stimulation to safely and consistently stop dogs of any temperament from barking. Automatically stops barking No programming required The NoBark 18 uses a patented sensor system to provide the most reliable bark detection available. Collar is waterproof and has a replaceable lithium battery (3-6 month life, replacement is RFA-67D-11)