Features:Wonderful device for your Dog Training! The Ultrasonic Bark Stop Dog TrainingCollar is an advanced behaviour modification device designed to help train your dog to stop excessive barking. This Dog Collar eliminates interruption from another dog. You can truly enjoy the outdoors with your pet、 and eliminate nuisance barking.The Bark Stop Collar is an advanced behaviour modification device designed to help train your dog to stop excessive barking.The Dog Training Collar is activated through the bark vibration of the dog wearing collar. This Dog Bark Collar eliminates interruption from another dog.You can now truly enjoy the outdoors with your pet、 and eliminate nuisance barking.The Dog Collar straps are elasticated with an buckle.NOTE: Not guaranteed to work on all dogs、 depends on every dog's sensibility to ultrasonic sound. Works better for small、 medium dogsSpecification:Lightweight ConstructionAdjustable Stretch CollarUltrasonic and Audible SelectionsOn / Off ButtonTriggers accurately activited by Bark Vibration ( can not be activated by other dogs barking)LED indicatorOriginal box: NOColor: WhiteNet weight: 42gPackage weight: 51gPacking content:1 x Bark Stop Control collar1 x Adjustable strap2 x L1130 button batteries1 x User manual