of time that the user has before requiring to re charge transceiver 10 rfid tag 12 can comprise conventional rfid tags adapted to emit periodic identification or beacon signals in one embodiment rfid tag 12 is configured to activate an auxiliary system in response to a signal from a remote source in still another embodiment rf id tag 12 is configured to provide an identification signal to rfid receiver 2 confirming its identity once identity of device 10 is confirmed device 2 can take steps to remotely activate device 10 remote activation can occur through the rf system or through physical connection in another embodiment of the invention device 2 can communicate with a plurality of rfid tags not shown in the same vicinity once an external signal is received by device 2 it may survey available rfid tags to identify the appropriate device from among the plurality of devices equipped with id tags the appropriate device can then be activated as discussed above in another embodiment although rfid transceiver 4 is connected to energy storage unit 8 which may have a larger energy capacity than energy storage unit 16 rfid transceiver 4 could be constructed to utilize less energy than frequency hopping spread spectrum unit 6 this could also reduce an amount of power used by transceiver 2 in yet another embodiment rfid transceiver 4 can send an activation signal to active rfid tag 12 when rfid transceiver 4 detects a presence of active rfid tag 12 this.