Double down on protecting off-limits outdoor areas with the Pawz Away Outdoor Pet Barrier Transmitter. This extra pet barrier is cleverly designed to look like a rock, so you can discretely hide it in your flower beds. The additional pet barrier works like an outdoor pet gate to help keep your dog or cat away from off-limits areas. Customize your backyard setup by choosing to create a wireless or wired boundary area. When you set it up as a wireless outdoor pet barrier, you can adjust the circular boundary range up to 16 feet in diameter, or you can create a custom-shaped barrier using up to 150 feet of boundary wire (sold separately). This extra pet barrier only works if your pet is wearing a compatible Pawz Away Extra Receiver Collar or Yardmax Rechargeable Receiver Collar, sold separately. When your pet approaches the off-limits area while wearing a compatible collar, they will feel a safe but startling static correction that will deter them from lingering in the area. With a little time and training, your dog will learn to stop digging in the garden (and your plants will thank you).