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The Bark Stop Collar is an advanced behaviour modification device designed to help train your dog to stop barking . Bark Stop Collar Water resistant design is built to stand the toughest abuse . With Bark Stop Technology,depending on your dogs learning ability,your dog`s barking should decrease over time and in some cases almost immediately and you won`t have to worry about the device becoming damaged because of a little water .This is the world`s first water resistant bark controlproduct available . The world`s first fully Water resistant bark control Products available ! Features: *Water resistant Construction *Adjustable stretch Collar *UltraSonic and Audible selections *On/Off Button *Triggers Accurately by Bark Vibration(can not activate by other dogs barking)Technical parameter Size:65*15*65mm Color:Green and Wihte Product Model:EL-PET-005 Input voltage:3V Battery:2*L1130 batteries (without inside)