The SportDOG® Brand NoBark SBC-10 is easy-to-use, effective, and customizable with 2 modes of operation: Progressive Correction and User Select. Progressive Correction 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 those high-drive dogs who are unaffected by the lower levels of static stimulation and tend to bark through the first levels of Progressive Correction. The SBC-10 uses our Silent Partner� bark-detection technology to ensure your dog is only corrected when he barks. Also built with a rechargeable battery and 2-hour quick charge, the collar can be ready when you need it. By providing reliable, consistent training, your dog will quickly learn to be quiet when you need him to be.