Yes. You can use an additional wireless transmitter to create overlapping circular containment areas. The transmitters will automatically function together to create the larger field and your pet will have greater freedom. The two signals from the transmitters will need to overlap by at least 5 – 10 feet (similar to the Master Card logo). You can adjust this area based on where you place the transmitters and the range you have the units set on. Additional transmitters are available for purchase on our website or by contacting our Customer Care Center.