Anti Bark Device Ultrasonic Dog Barking Control Stop Repeller Trainer Train Tool 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". Night LED 3W Flash Light + Laser - Bark Control Deterrent is equipped with a night light, which is suitable even when walking your dog outdoors at night. The flashlight can be turned on separately. The laser can be used as an entertainment tool for dogs and cats, standalone strong 3W flashlight with long light, SOS and continuous flash modes. 32.8 FEET WIDE CONTROL RANGE - The effective range of the dog barking device is up to 32.8 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. Carefully Designed Sound Wave Design: The dog-friendly ultrasonic waveform designed according to your dog's hearing characteristics makes this outdoor dog barking control device easier for your dog to understand and learn. Indoor and outdoor & easy to use 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 SUPERIOR BATTERY LIFE & RECHARGEABLE - Use for up to 4 months without recharging (assuming 10 uses per day for 10 seconds each time). Full charge only takes 1-2 hours. Specification: Material: ABS (lightweight) Working range: 10m Charging time: 1-2 hours Size: 120mm x 47mm Packing list: 1 x Training and anti-barking device 1 x Wrist strap 1 x USB cable 1 x Instruction manual