Features: 1.SUPER ULTRASONIC: Dog barking deterrent device produces ultra strong ultrasonic waves that can make dogs run away quickly. 2.INFRARED LIGHT: Dog barking deterrent can effectively stimulate the dog's nervous system. Infrared light can make the dog follow. 3.DOG TRAINING DEVICE: Anti barking device emits a harmless but effective sound to control excessive barking and help you correct their behavior. 4.EASY TO CARRY: Dog training device is convenient and easy to use. It fits perfectly in the hand and is perfect for anyone to use outside. 5.ABS MATERIAL: Dog barking control device is made of ABS material for long term use and is a great choice for an outdoor dog bark stopper. Specification: Item Type: Dog Barking Control Device Material: ABS Product Specification: Double Headed Black (Plus Battery) Size: Approx. 13.7x5.5x2.5cm / 5.4x2.2x1.0in Power Supply: 9v Rectangular Battery (With Battery) Product Use: Portable Dog Trainer PackageList: 1 x DogBarkingControlDevice 1 x 9v Battery 1 x Instruction Manual Note Please allow some error due to manual measurement. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin