The SportDOG NoBark SBC-10 is easy-to-use, effective, and customizable with 2 modes. Progressive Correction mode starts at the lowest level of static stimulation and increases each time your dog barks. After 30 seconds of quiet, the collar will reset back to the lowest level. The User Select mode, where you manually choose the correction level, is designed for dogs who are unaffected by the lower levels of static stimulation. The SBC-10 uses their Silent Partner bark-detection technology to ensure your dog is only corrected when he barks. Features a rechargeable battery & 2-hour quick charge.