• Automatic anti-bark device that detects barking and emits safe and harmless ultrasound for training. • Features 3 adjustable frequency levels to adapt to different dog sizes and ambient noise levels. • Effective detection and action range of up to 15 meters to control barking indoors and outdoors. • 1800 mAh rechargeable battery via USB with an autonomy of 30 to 45 days after a full charge. • Water-resistant design with IPX4 certification suitable for outdoor use even on rainy days. • Package includes the anti-bark device, a USB charging cable, and a user manual. • Recommended for dogs between 6 months and 8 years of age with normal hearing.