No. The battery-operated transmitter for the lock/unock/panic functions is one thing.

Once you insert the key and turn it to "ON", the SKREEM powers up and energizes the ring around the key, energy is radiated to the RFID chip in the key, the RFID responds with a TINY RF (radio) signal, that has a code in it the SKREEM uses to know that the key is authentic. Power for this function, again, comes from the antenna ring.