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The are easy to get.
So easy my dogs trees come in an aluminum foil bag that actually come works (no I don't know why)
Simple to test.
Put cell phone in bag.
Call cell phone FROM A DIFFERENT PHONE
If the phone rings, fail.
Word of warning. If you keep the phone in the bag, put the phone in airplane mode.
If you don't, your battery life will be bad because, overly simplified, the phone will be saying. hello, can anybody hear me? Until you take it out of the bag.
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The world needs more Protest Singers
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