Specifications:Color: BlackDimensions: 14.1 x 6.2 x 3 cmWeight: 70gIdeal For:All dog sizes (small to large breeds)Puppies to senior dogsIndoor and outdoor training contextsPackage Includes:1/2/3 pcs × Dog Trainer UnitNote:Manual measurement may cause slight size variance. Designed and tested for humane, stress-free dog training. 3-IN-1 ULTRASONIC TRAINER & FLASHLIGHT: This compact device combines ultrasonic behavior correction, a powerful LED strobe warning light, and an ultra-bright flashlight. Effectively reduces barking, chewing, jumping, and aggression—indoors and outdoorsHUMANE & SAFE APPROACH: Uses only pet-safe ultrasonic sound—no shocks, yelling, or physical contact. Gently reminds your pet without fear or discomfort, promoting trust and encouraging positive behaviorWIDE-AREA COVERAGE: Dual high-frequency speakers emit ultrasonic pulses over long distances, ideal for use in parks, yards, during walks, or while traveling. Keeps unwanted behaviors and stray animals at a distanceONE-HAND OPERATION: Easily switch between training, repelling, and flashlight modes with a simple dial. Clear icons prevent errors and ensure fast, accurate response every timePORTABLE & DURABLE DESIGN: Built with tough ABS materials in a compact, keyring-ready shape. Easily attaches to bags, belts, or leashes—perfect for training on the go