Place EXTRA RECEIVER units everywere that are invited to STAY OUT!
How many off limits areas in your yard? Keep Fido out the trash, away from the petunias and teach him to stop digging under the fence all at the same time. Put a YBR-1 extra receiver in each restricted area.
(Requires transmitter collar availible with any of our Sonic Barrier systems. Transmitter is also provided with our PowerPet automatic pet door and Humane Contain underground fence system. READ MORE 
