Characteristics: Material: ABS. Colour: Black Frequency: 25 kHz. Power supply: 1 9V tandem battery (not included). Dimensions: approximately 13.5 x 6.7 x 3 . Features: - The portable ultrasonic trainer comes with a lanyard, which can take you everywhere, for example, jogging or cycling, walking, parking, etc. . - The anti-barking device for dogs has a super bright LED flashlight which can protect the malicious dog when you are outside at night. - Manual repellent for dogs based on the theory that the dog trainer can effectively train their dogs in obedience and stop unwanted behaviors. Outdoor anti-bark device that can only be heard by dogs, not humans. The best choice for travelers, shift workers, women, students and many special people. Content: 1 ultrasonic repellent for dogs. Pet Trainer Usage: - Aim your repeller directly at the dog or cat, always at arm’s length about 6 feet away (effective up to ‘a few 20 feet). - Enter the verbal command and immediately press the button for