Train with Confidence! 🐾 Intelligent protection system halts shocks after 6 activations to prevent unnecessary punishment. Designed for dogs of all sizes, from small to large, ensuring comfort and effectiveness. Equipped with a premium chip for precise barking detection, eliminating false triggers. Fully charges in just 2 hours for up to 15 days of continuous use. Choose between beep, vibration, or shock to suit your dog's needs. Fits 7.8" - 27" necks IP67 waterproof Rechargeable battery The NBJU Rechargeable Anti Barking Collar is a humane and effective training tool for dogs of all sizes. With adjustable sensitivity levels and multiple training modes, it ensures a tailored approach to barking correction. Its smart sensor technology minimizes false triggers, while the intelligent protection system prioritizes your dog's safety. Plus, it's rechargeable and waterproof, making it perfect for outdoor training adventures.