Feature: 1. Effective Dog Repellent: Portable dog deterrent utilizes ultrasonics technology to effectively scare away aggressive dogs and prevents their barking, ensuring your safety. With its powerful penetration ability, the ultrasonics sound is inaudible to humans and harmlesss to both animals and people. 2. Humane Dog Training: Train your beloved pet using scientific and humane methods with the innovative device. It helps them understand the negative consequences of undesirable behavior, promoting a better relationship between you and your canine friend. 3. Three Working Modes: It offers three convenient working modes for easy customization to suit your specific needs. Whether you prefer a higher or lower frequency, you can effortlessly switch between modes to effectively discourage unwanted behavior. 4. Premium Quality: Crafted from high-quality ABS material, the dog repellent is built to withstand daily wear and tear, ensuring durability and long-lasting performance. The IPX4 waterproof rating provides added protecting, so you don\u0027t have to worry about using it even when it\u0027s drizzling outside. 5. Energy-Efficient and Long-lasting: Powered by a 9V battery (not included), it boasts low power consumption and extended battery time. You can easily turn it off when not in use to conserve energy, making it a cost-effective and environmentally-friendly choice. Specification: The portable dog repeller utilizes ultrasonics technology to effectively scare away aggressive dogs, prevents barking, and ensure your safety. With 3 working modes and a humane training approach, this device is easy to use and provides a long-lasting solution for better interaction with your pet. Made of durable ABS material and featuring a long battery life, it is waterproof and energy-efficient, making it a reliable choice for pet owners. Features: Effective Dog Repellent: Portable dog deterrent utilizes ultrasonics technology to effectively scare away aggressive dogs and prevents their barking, ensuring your safety. With its powerful penetration ability, the ultrasonics sound is inaudible to humans and harmlesss to both animals and people. Humane Dog Training: Train your beloved pet using scientific and humane methods with the innovative device. It helps them understand the negative consequences of undesirable behavior, promoting a better relationship between you and your canine friend. Three Working Modes: It offers three convenient working modes for easy customization to suit your specific needs. Whether you prefer a higher or lower frequency, you can effortlessly switch between modes to effectively discourage unwanted behavior. Premium Quality: Crafted from high-quality ABS material, the dog repellent is built to withstand daily wear and tear, ensuring durability and long-lasting performance. The IPX4 waterproof rating provides added protecting, so you don't have to worry about using it even when it's drizzling outside. Energy-Efficient and Long-lasting: Powered by a 9V battery (not included), it boasts low power consumption and extended battery time. You can easily turn it off when not in use to conserve energy, making it a cost-effective and environmentally-friendly choice. Specifications: Color: Black/ Brown(optional) Material: ABS Working Frequency: 22-25kHz Item Size: 80 * 63 * 43mm/ 3.1 * 2.5 * 1.7in Package Size: 80 * 65 * 50mm/ 3.1 * 2.6 * 2.0in Package Weight: 85g/ 3.0oz Packing List: 1 * Dog Repeller Package List: 1 * Dog Repeller