My point is that there's very little difference between the two.

Warning: Science Content below...

The signal form a cell or two-way should already be on different frequencies from whatever the blasters use; the problem is that signals can malfunction, bounce, create harmonics & otherwise wreak havoc. That's why they don't let you use such devices on airplanes, & why they say don't use them around gas pumps; properly functioning, there should be no problem, but you never know when the Fuck-up Fairy is gonna visit...

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