PetSafe Pawz Away Outdoor Pet BarrierKeep pets safely away from outdoor areas like flower beds, gardens, ponds, garbage cans and more. Rock design transmitter blends into landscaping and creates a wireless 16 foot barrier signal to your dog's receiver collar. Collar is lightweight, waterproof and adjustable for a comfortable custom fit. Take back control of your yard! Your dog will quickly learn to steer clear of the off-limits area.System includes:Waterproof barrier transmitterWaterproof reciever with adjustable collarTwo 3-V lithium batteriesTest light toolOperating & training guideOther items you will need (not included):4 Alkaline D-batteriesPhillips screwdriverNon-metallic collar and leadScissorsLighter.