Ultrasonic dog trainer that can emit a piercing ultrasonic sound that dogs hate. With it, you can teach your pet to be obedient, correct misbehavior, and stop barking. Humanized design, safe for humans and safe for dogs. Features: Can be used to train dogs, effectively help dogs in obedience, bad correct behavior and stop barking stop. It can emit penetrating ultrasonic sounds that dogs hate, scare away enemy dogs and protect you from dangerous attacking dogs while walking, jogging or cycling. /> With infrared function, it can enhance the ability to scare dogs away from a greater distance Flashlight at usual times, very convenient to use. Works on most dogs, safe and effective, but no harm to humans and pets. Easy to carry with rope, convenient and easy to carry.< br/> Features: Model: ZF-853 Material: Plastic Color: Black Operating Distance: Within 12m Powered by A: 1 * 9V (not included) Spot Size: Approx. 135 * 60 * 30mm / 5.31 * 2.36 * 1.18in Package Weight: Approx. 115g / 4.06oz