Description: Do you want to stop your unwanted barking and bad behaviors of your dogs? Well, then why not getting this bark trainer under the principle of ultrasonic sound? When the device detect dog's barking then it emits an ultrasonic sound which can only be heard by the dog and the dog will stop barking. The high-pitched ultrasonic sound that is irksome to dogs and at the same time it is soundless to the human. It is fully harmless and safe to humans and dogs. Come and get one, you gonna love it!!! Features: IP-65 waterproof: Suitable for both indoor and outdoor use. Integrated button, easy to operate : Just press the button within the effective range(≤5m ) then it emits an ultrasonic sound which can only be heard by the dog and the dog will stop barking. Multifunctional bark stopper & civilized dog trainer: Not only can it helps stop unwanted barking and noise, but also helps prevent your dogs from conducting uncivilized behaviors, such as storming, biting, picking up garbage and drowning etc. Harmless and effective: The high-pitched ultrasonic sound that is irksome to dogs and at the same time it is soundless to the human. It is fully harmless and safe to humans and dogs. Lightweight and portable: Fasten the included the anti-static lanyard to your hand, easy and convenient to carry this bark stopper. Using suggestion: It will be more effective if the owner use some simple orders or instructive language while using this product. Specification: Condition: Brand new Material: ABS Color: Dark gray Effective range: ≤5m Battery:9V Alkaline battery(Included) Weight: 196g Size: 16 x 11 x 6cm / 6.30 x 4.33 x 2.36 inch (Approx.) Package Included: 1 x Bark trainer 1 x Alkaline battery(9V) 1 x User manual Notice: The maximum effective is 5m. Long distance training is not effective. It's suggested to hold tightly to the ropes while training your dogs with this device. Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures. .