4.6X More Effective than Dog Bark Collar - 3 IN 1 Anti Dog Barking Training Device: In contrast to bark collars, the Deeteck Anti-Bark Device avoids the painful shock of a bark collar. It offers three safe and effective modes for bark training and control: Ultrasonic Release Mode, Enhanced Ultrasonic Sound Training Mode and LED Flash Warning Mode. It quickly corrects improperly trained dog behaviours such as barking, digging, chewing, scratching, biting, climbing on furniture and other unwanted behaviours, which disappear immediately. 2 Safe Ultrasonic Frequencies - Fixed & Variable Frequencies: To prevent your dog from becoming accustomed to a single frequency, our dog no bark device emits a fixed ultrasonic frequency of 25kHZ and a fluctuating ultrasonic frequency of 20kHZ-30kHZ. This ultrasound is virtually inaudible to the human ear, but is so effective at getting your dog's attention and deterring barking that it allows for more effective night or outdoor training for dogs of all types and sizes from 6 months to 8 years of age. Stop Bad Behavior in 3s - 55FT Long Range Control:The new upgraded ultrasonic bark deterrent is equipped with 3 professional ultrasonic emitters with a faster transmission rate and a wider 55ft control range. Whether you are training your dog indoors or outdoors, it can quickly, effectively and safely change every annoying, destructive or unsafe bad behaviour of your dog in less than 3 seconds.(Please note: If your dog loses hearing, our equipment will not be effective.)

【3 Adjustable Modes & Range Up to 50Ft】The dog barking silencer has three control modes to meet the different needs of your dog. The bark box anti barking device can cover a range of 50 feet and can be used indoors and outdoors. It is not only suitable for stopping your dog from barking, but also for stopping your neighbor's dog from barking excessively, creating a quiet space for you. 【Effective & Safe Dog Bark Deterrent Devices】Our anti barking device for dogs uses ultrasonic technology to prevent dogs from disturbing people's rest by excessive barking. The ultrasonic sound it emits is specially customized for dogs, which calms dogs by emitting soft but effective sounds. The humanized design ensures that dogs stop excessive barking without causing any pain and harm. 【Anti Barking Device for Dogs】Dog bark deterrent devices can stop your dog from barking excessively, so you can say goodbye to the nightmare of sleepless nights and constant disturbance caused by your neighbor's dog barking excessively. It ensures effective and humane training both indoors and in a spacious outdoor environment, creating a peaceful environment for you and your neighbors.