1/2 Pet Dog Wireless Electric Fence Containment System Training Collar Shock

The transmitter emits a harmless radio signal in a radius between 20ft to 850ft(selectable) around itself and the signal is detected by the collar. 【Wireless Dog Fence Mode】: This dog fence system customize a wireless radial shaped boundary with 16 levels of distance with radius range from 20ft to 850ft.

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