NO BARK COLLAR - The Bark Boss No-Bark dog behavior correction collar is specially designed for the prevention of excessive barking by automatically sending out a warning Tone/Beep followed by Gentle Touch Stimulation when unwanted barking occurs. This humane & effective training system is ideal for all dog temperaments from stubborn to mild CUSTOMIZABLE STIMULATION - Crafted to handle all types of dog barking problems, the Bark Boss bark control training collar features 8 levels of harmless static stimulation and a beeping warning tone. The technologically advanced vibration sensor only picks up vocal cord vibrations from your barking dog (will not activate from other loud noises or other barking dogs) INTUITIVE OPERATION - The no-bark collar's simple turn dial allows for effortless adjustments, ensuring you can fine-tune the correction to suit your dog's size and temperament. For best results, fit the no-bark collar snugly around your dog's neck, ensuring the sensor and contacts make good contact with the skin. Choose the appropriate stimulation level ranging from 1 to 8 or "T" for tone-only COMPACT & LIGHTWEIGHT - Comfortable for extended wear, the No-Bark Collar for dogs boasts a compact and lightweight design. The collar's adjustable, quick-snap buckle strap fits neck sizes from 7" to 27", accommodating dogs from 5 to 120 lbs. Constructed from tough nylon, this no-barking collar strap boasts high durability while providing your pup with a secure, comfortable fit ULTIMATE FUNCTIONALITY - Fully waterproof, this no-bark collar is safe for use in any weather conditions, and your dog can wear it even while swimming. This dog training collar operates on a 6V battery (included), with an average battery life of 2-3 weeks, depending on usage. Make sure to read the owner's manual before use, and never leave your pet unattended while wearing any electronic device