DogWatch® Hidden Fence How-To Videos Introduction to DogWatch® Transmitter Features How to CHECK the Size of the Signal Field Range How to ADJUST the Size of the Signal Field Range Receiver-Collar Features How to Use the Receiver Multi-Tool How to Attach the Receiver to the Collar/Strap How to Adjust the Fit of the Collar/Strap for Your Pet How to Replace the Battery (R9/Smart Receiver) How to Change the Correction Level (R9/Smart Receiver) How to Replace the Battery (R7mini Receiver) How to Change the Correction Level (R7mini Receiver)