Was looking at the test again - the material is conductive, not energy producing - which makes perfect sense. Typically when resistance is measured, you don’t connect it to any power source because the multimeter will apply a small voltage to the resistor and measure the current flowing through it to calculate resistance (V=IR). The metal composition can cover up to 12GHz which is pretty decent. Higher signal will have lower power and requires amplifiers and mixers - hence if the concern is bodily protections then its perfect because it will bounce off.