Another benefit is that the prototype can operate with both short and long-range applications. Short range applications typically use a three-coil configuration to transfer power; for example, wirelessly charging smart phones. Long-range applications, like monitoring systems in animal research, use a four-coil configuration due to the longer distance over which power needs to wirelessly transfer. The new prototype can switch between both transmission ranges simply by changing the receiver topology. Adding or removing the secondary resonator switches the prototype between three or four-coil topologies so that it supplies the right amount of power.