Mophie juice pack helium Manual Del Usuario página 17

Does the juice pack block the speaker,
microphone, camera, or any other ports?
Of course not. In fact, the juice pack is designed to act
as a virtual speaker box! Sound is redirected from the
bottom of the phone to the front resulting in a richer,
fuller sound quality.
Does the juice pack interfere with antenna reception?
Not a chance.
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