Evelots Dog Trainer Repeller Training Aid Sound & Light Battery Included (150db) This Dog Training Aid & Repeller is a safe and effective device. A humane way to correct bad behavior and train your dog quickly and easily. The high pitch sound is designed only for cats & dogs to hear which helps discourage jumping, scratching, barking, and more. Teach your pet to sit, heel, fetch, or roll over with this great design. Product is light weight and portable for easy travel. Batteries included (150db). Measures approximately 4.5"L by 1.5"W by 1"H Get your Dog Training Aid & Repeller now and teach your dog how to listen and behave and also use this product to protect yourself from harmful unpredictable dogs while biking, walking, jogging, or preforming any other outdoor activities. Trusted vendor. For years Evelots has provided unique products with a 30 day easy return policy, and 100% satisfaction guarantee.