Item Type: Dog Barking Control Device_x000D_ Material: ABS_x000D_ Product Specification: Double Headed Black (Plus Battery)_x000D_ Size: Approx. 13.7x5.5x2.5cm / 5.4x2.2x1.0in_x000D_ Power Supply: 9v Rectangular Battery (With Battery)_x000D_ Product Use: Portable Dog Trainer 1SUPER ULTRASONIC: Dog barking deterrent device produces ultra strong ultrasonic waves that can make dogs run away quickly. 2INFRARED LIGHT: Dog barking deterrent can effectively stimulate the dog's nervous system. Infrared light can make the dog follow. 3DOG TRAINING DEVICE: Anti barking device emits a harmless but effective sound to control excessive barking and help you correct their behavior. 4EASY 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. 5ABS 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.1 x_x000D_ _x000D_ DogBarkingControlDevice 1 x 9v Battery 1 x Instruction Manual Please allow some error due to manual measurement.