Double Ultrasonic Dog Chaser Anti Barking Stop Bark Pet Dogs Training Device Portable Handheld LED Infrared Dog Repeller Control Trainer Pet Supplies Ultrasonic dog trainer, which can emit a piercing ultrasonic tone that dogs hate. With it, you can train your pet to be obedient, correct misbehavior and stop barking. Humanized design, safe to humans and harmless to dogs. Features: Can be used to train dogs, effectively helping train dogs to be obedient, correct misbehavior and stop barking. It can emit piercing ultrasonic tone that dogs hate, expelling unfriendly dogs away and protecting yourself from dangerous dogs attacking when walking, jogging, or bicycling. With infrared function can enhance the ability for expelling the dogs from longer distance. It also can be used as a torch at usual times, very convenient e. Work on most dogs, safe and effective, but no harm to human body and pets. With easy-to-carry rope, convenient and easy to carry. Specifications: Model: ZF-853 Material: Plastic Color: Black Operation Distance: Within 12m Powered By: 1 * 9V Battery(Not Included) Item Size: approx. 135 * 60 * 30mm / 5.31 * 2.36 * 1.18in Package Weight: approx. 115g / 4.06ounce Package Size: approx. 195 * 180 * 35mm / 7.68 * 7.09 * 1.38in Notes: The device will be ineffective under the conditions such as: 1. Your own pets, which know you will not hurt them; 2. When the circumstance is too noisy like downtown area or busy kerbside; 3. Dogs under the conservation of their owners stand beside them; 4. Trained dogs familiar with these kinds of devices; 5. Low transmission power when battery voltage is low. Package List: 1 * Anti Barking Device 1 * User Manual(English)