Super Bark FreeThe new Super Bark Free offers all the features of the original, but adds many new ones, including super-high-power dual speakers and an attachable target dome that increase its operational range to 50 ft. - twice that of the original Bark Free. In addition, it offers an adjustable bark selector that lets you choose how many barks it takes to activate the Super Bark Free (1-4 barks). Unlike the original Bark Free, the Super Bark Free is powered by 4 'D' batteries, so you can place it anywhere in your yard or near an AC outlet with optional adapter.Super Bark Free uses an old age principle of ''Negative Reinforcement using Sound'' to help train dogs to stop annoyance barking. Includes a wall-mount bracket and post mount for outdoor use. Battery life 2000 activations (approx.) Optional AC adapter available for continous plug in use. For outdoor use only. (The Super Bark Free is weather resistance, not water proof) Super Bark Free
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