ULTRASONIC DOG AND CAT REPELLER 3 MODES Dog barking deterrent - ultrasonic device against dog barking The product equipped with advanced ultrasonic sound technology enhances the effect of pushing dogs away, so you don't have to worry that you and your pets will be attacked by your dog. Ultrasonic dog barking control device: Anti-Barking Device - Using the latest sound technology, the device detects dog barking in the area covered by the system and automatically emits sound waves to silence the dog to solve the problem of excessive and loud dog barking. 100% Safe Dog Barking Control - The sound device using high-frequency sound technology is harmless to pets whose hearing range exceeds the human range, but will get your dog's attention without painful stimulation. A harmless and humane way to stop your dog and your neighbor's dog from barking! Effective for all breeds and sizes of dogs! Safe Anti-Barking Device - Sound Device Using high-pitched ultrasonic technology, it is harmless to pets whose hearing range exceeds the human range, but will get your dog's attention without painful stimulation. LED Indicator - The dog repeller is equipped with an LED indicator, so you don't have to worry about the dog repeller suddenly running out of power. Functions: 1. 3W flashlight, with three long light modes 2. Ultrasonic button function 3. Buzzer button function 4. The control distance is about 10 meters 5. Three channel switching; (1 fixed frequency, 2 gap frequency conversion, 3 random frequency conversion) 6. LED power display; 7. Ultrasonic work indicator; 8. 1200Mah large battery, power saving function, long standby time 140 days, normal use up to 20 days, fast charging in 2 hours;