•【Powerful Ultrasonic Dog Repellent】Emits ultrasonic waves between 22-29kHz from 4 ultrasonic heads, effectively repelling and training dogs while preventing barking. •【Automatic Anti-Barking Function】Features an intelligent system that automatically activates to deter excessive barking, ensuring peace and quiet. •【High-Intensity Outdoor Lighting】Equipped with a bright LED light for illumination and an SOS signal feature for emergencies. •【Manual Feedback Control】Includes a user-controlled activation option for enhanced safety and precise usage. •【Long-Lasting Battery Life】Powered by a 2000mAh 18650 lithium battery, offering up to 180 days of standby time and 30 days of continuous use. •【Durable Construction】Made from high-quality ABS material for durability and visibility. Specifications: •Model: 18650 Lithium Battery •Battery Capacity: 2000mAh •Working Voltage: 3.7V •Working Current: 1A •Charging Voltage: 5V •Charging Time: 4 hours •Material: ABS •Ultrasonic Frequency Range: 22-29kHz •Standby Time: ≥180 days •Continuous Usage Time: Up to 30 days (theoretical value) Package included: •1 x Dog Training Device •1 x Charging Cable