Features:
Bark Control and Training: Ultrasonic Anti-Bark Dog Training Device is a 3-in-1 device for pet training and anti-barking with lighting.
Deterrent Mode: Emits higher intensity ultrasonic waves while the flashlight blinks as a warning to prevent other dogs from approaching you.
Training Mode: Emits lower intensity ultrasonic waves to assist in daily dog training such as stopping excessive barking, fighting, biting and correcting other unwanted behaviors.
Three Frequency Modes: The dog ultrasonic bark control can emit three different ultrasonic waves: fixed, variable and random frequencies. After adjusting the desired mode, press and hold the ultrasonic button with the message "Do not use device through obstacles".
33 Feet wide control range: The effective range of the dog barking device is up to 33 feet/10 meters, perfect for indoor or outdoor use. With the dog barking control device installed indoors, you no longer have to worry about your dog chewing on the couch at home, barking at strangers at the door, or fighting outside and other dangerous behaviors. 
Correct unwanted behavior: Pet gentle anti-barking device UT01 emits 25 kHz ultrasonic waves, which won't affect humans, but can attract your dog's attention without worrying about hurting your dog. When your dog stops the inappropriate behavior, please give your dog a treat, threat or petting to reinforce the training effect. Bark control device is not suitable for the following conditions:aggressive dogs, hearing impaired dogs, dogs under 6 months or over 8 years old dogs
 
Specifications:
Material: Plastic
Power: USB
Input Voltage: 3.7V
Battery: 1500mAh
Waterproof Rating: IPX2
Ultrasonic Frequency: 24kHz
Input Current: 40mA
Working range: 10m/33 feet
Charging Mode: Type-C
Type: Anti Barking Device
Color: Black&Orange
Charging time: 1-2 hours

Package Includes:
1 x Ultrasonic dog Training Device  
1 x User Manual
1 x USB Charging Cable  
1 x Wrist Strap