An assembly of: a first wireless communication element comprising: - a first antenna configured to receive a wireless signal and output an output voltage corresponding to the wireless signal, the wireless signal having a wireless signal frequency - a first circuit connected to the first antenna and being configured to, when receiving the output voltage, output an output signal to the first antenna, the first antenna being configured to output a wireless output signal corresponding to the output signal, the wireless output signal having an output frequency, and a second wireless communication element comprising: - a second antenna configured to receive the wireless signal and output a first voltage corresponding to the wireless signal, - a voltage increasing element connected to the second antenna, the voltage increasing element being configured to increase the first voltage by a predetermined factor to a second voltage and output the second voltage, - a second circuit connected to the voltage increasing element and being configured to, when receiving the second voltage, output a noise signal to the second antenna, the second antenna being configured to output a wireless noise signal corresponding to the noise signal, the wireless noise signal having a frequency component in a frequency band of the wireless signal frequency or the output signal frequency, wherein: - the first circuit is configured to start outputting the output signal when the output voltage reaches a first threshold voltage, - the second circuit is configured to start outputting the noise signal when the second voltage reaches a second threshold voltage and - the first threshold voltage exceeds the second threshold voltage divided by the predetermined factor. a first wireless communication element comprising: - a first antenna configured to receive a wireless signal and output an output voltage corresponding to the wireless signal, the wireless signal having a wireless signal frequency - a first circuit connected to the first antenna and being configured to, when receiving the output voltage, output an output signal to the first antenna, the first antenna being configured to output a wireless output signal corresponding to the output signal, the wireless output signal having an output frequency, and - a first antenna configured to receive a wireless signal and output an output voltage corresponding to the wireless signal, the wireless signal having a wireless signal frequency - a first circuit connected to the first antenna and being configured to, when receiving the output voltage, output an output signal to the first antenna, the first antenna being configured to output a wireless output signal corresponding to the output signal, the wireless output signal having an output frequency, and a second wireless communication element comprising: - a second antenna configured to receive the wireless signal and output a first voltage corresponding to the wireless signal, - a voltage increasing element connected to the second antenna, the voltage increasing element being configured to increase the first voltage by a predetermined factor to a second voltage and output the second voltage, - a second circuit connected to the voltage increasing element and being configured to, when receiving the second voltage, output a noise signal to the second antenna, the second antenna being configured to output a wireless noise signal corresponding to the noise signal, the wireless noise signal having a frequency component in a frequency band of the wireless signal frequency or the output signal frequency, - a second antenna configured to receive the wireless signal and output a first voltage corresponding to the wireless signal, - a voltage increasing element connected to the second antenna, the voltage increasing element being configured to increase the first voltage by a predetermined factor to a second voltage and output the second voltage, - a second circuit connected to the voltage increasing element and being configured to, when receiving the second voltage, output a noise signal to the second antenna, the second antenna being configured to output a wireless noise signal corresponding to the noise signal, the wireless noise signal having a frequency component in a frequency band of the wireless signal frequency or the output signal frequency, wherein: - the first circuit is configured to start outputting the output signal when the output voltage reaches a first threshold voltage, - the second circuit is configured to start outputting the noise signal when the second voltage reaches a second threshold voltage and - the first threshold voltage exceeds the second threshold voltage divided by the predetermined factor. - the first circuit is configured to start outputting the output signal when the output voltage reaches a first threshold voltage, - the second circuit is configured to start outputting the noise signal when the second voltage reaches a second threshold voltage and - the first threshold voltage exceeds the second threshold voltage divided by the predetermined factor.