Features: Advanced Ultrasonic Technology: Uses high-frequency sound waves to safely deter barking, aggression, and animal attacks without physical contact. Portable & Lightweight Design Compact and easy to carry (110x30mm), perfect for indoor and outdoor pet training. Dual-Function Device: Works as both a dog repeller and a pet training tool to enhance obedience and prevent unwanted behavior. Safe & Humanes Training: Non-harmful ultrasonic sound ensures stress-free training for pets while maintaining a peaceful environment. Ideal for Pet Owners & Trainers: Suitable for dog trainers, pet owners, and outdoor enthusiasts looking for an effective anti-barking and behavior control device. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Battery capacity: 800 mA Working hours: 90 days Charging time: 0.5 hours Rated frequency :15-40KHZ Rated Power: < 3W Rated power supplies :DC5V Note: 1. Please allow 1-3 mm error due to manual measurement and 1-3g weight error make sure you don't mind before ordering. 2. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you! About Shipping: 1.please pay attention to your delivery address such as: name, street, house number, doorbell/email without name, etc. is correct, or the order will not be delivered correctly. 2.All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. 3.During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours Hope you have a pleasant shopping experience!