Mercutio said:
From the device's packaging (but not on their website materials):
Now....I am not a garbage collector, myself, so I don't understand all the language here. "Passive circuit analog device"? Translation, please?
Even bards may aspire to become garbage collectors one day!
Taking it literally:
Passive in electronics terms means a component that may modify electric current without "actively" changing it, i.e. amplification would be active.
An analogy: a hose pipe may modify a flow of water passively but will not change things that require external power, for example the pressure of the water. But a pump on the other hand, which has its own power source, can actively change the pressure.
Analog simply means "not digital". In other words, an analog device can handle continuous, smooth, infinitesimal changes in some property like voltage. A digital device however can only cause or detect a maximum of two discrete states in the change of that property, for example "on" and "off".
For example, a normal light switch is "digital" because it can only switch the light between one of two discrete states, i.e. on or off. A dimmer switch on the other hand is analog because it can smoothly vary the light through a (theoretical) infinite number of states BETWEEN on and off.
Circuit, literally means a closed path around which electric current can flow.
It's the last one where the claim falls down. There is no "circuit". The device is passive because it doesn't need an independent energy source (i.e. it doesn't run on batteries). It's analog, because it's operation is not solely confined to two discrete states (i.e. it doesn't switch radiation on and off). But it ISN'T a circuit. It's a bit of tinfoil with holes punched in it!

Circuit implies some combination of electronic components, and a passive absorber (which it claims to be) doesn't constitute a circuit.
Which is all a very long winded way of saying that it's totally meaningless, but it SOUNDS good!
