New Bark Collar for Large & Medium Small Dogs - IP67 Waterproof & Rechargeable * INTELLIGENT CHIP, SAFETY GUARD: this bark collar, with the leading AI intelligent bark recognition chip and motion detection technology, will only activate when it captures your dog's vocal cord vibration and barking. With this technology, our dog bark collar not only effectively prevents false triggering from outside noise or nearby pets, but also provides a safe and harmless way to train your dog. * COLOUR SCREEN FOR EASY OPERATION: Our bark collar comes with a LED color screen that displays the battery level, training mode and sensitivity level(5 levels of sensitivity) at a glance. * VERSATILE TRAINING OPTIONS WITH SAFETY AND HUMANE DESIGN: This bark collar, designed for large and medium dogs, offers 4 training modes. In the non-shock mode, you can train your dog using beep, vibration, or a combination of both. Alternatively, in shock mode, you can utilize beep+vibration+shock to address excessive barking and correct your dog's behavior. The collar features 5 sensitivity levels with different settings for each mode, ensuring gradual and effective correction of your dog's habits in a safe and humane manner. * ULTRA LONG LIFE, WIDELY APPLICABLE ENVIRONMENT: the bark collar has a built-in USB rechargeable battery, which can be fully charged in 2-3 hours, and the high-capacity battery can extend the use time up to 15 days. B0D59Q7QWP 6.3oz