- Effective Training Aid: The silent high-frequency dog whistle is specifically designed for effective recalls without disturbing others. Its ultrasonic sound captures your dog's attention instantly while remaining inaudible to human ears. - Adjustable Frequency: Easily modify the sound frequency by twisting the screw to suit dogs of any age and breed. This adaptability enhances training efficiency for diverse canine companions. - Eco-Friendly Construction: Crafted from environmentally friendly plastic and chrome-plated metal, this dog whistle offers a sustainable solution for training. It contributes to your dog's education while promoting environmental responsibility. - Lightweight and Portable: Weighing just 16 grams, this whistle is incredibly portable. Slip it into your bag or attach it to your collar without noticing any extra weight, making it ideal for travel and on-the-go training. Use Scenarios: - Perfect for outdoor training sessions, allowing you to recall your dog from a distance without startling passersby. - Ideal for obedience classes, enhancing communication between you and your dog while minimizing distractions. - Great for hiking or camping, ensuring your dog can respond to commands even in remote locations. Whether you're training a puppy or an adult dog, this high-frequency whistle meets your needs with ease and efficiency.