Features 1. Use this long-range ultrasonic dog bark deterrent to make your community safe and peaceful. 2. It is suitable for all dog breeds and other breeds known for excessive barking. The device has both straight wave and jump wave function modes, which help adjust the behavior of dogs and prevent them from barking. 3. The ultrasonic dog repellent adopts a three channel transmitter, which is easy to control and can be operated with a 2000mAh battery capacity. 4. The device is equipped with a continuous/flashing light, which helps ensure that your beloved dog can be seen even in low light conditions. 5. This product is very suitable for those who want to train and obey their pets while keeping their surroundings quiet. Equipped with an LED flashlight and charging port, it is an ideal choice for walking. Functional Features LEDandFlashing Expulsion Ultrasonic Expulsion Interference Mode 1000mAh polymer battery Dual probe dual transformers drive Press vibrationandaperture feedback Low power indicator light Rechargeable long battery life Range of use: 10 meters Specification Packaging size: 142 x 95 x 41mm Packaging weight: 140.6g Package Include: 1x Ultrasonic Anti Barking Device