In Pictures: Swiss Army smartphone - 7 tools your phone can replace

With the right apps, cases and add-ons, your smartphone can tackle a wide and whacky range of tasks.

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Stun gun To protect yourself at closer-than-pepper-spraying distance, consider a Yellow Jacket stun gun case.

According to Yellow Jacket's web site, the shock delivered is more of a "sting" than a "stun."

And the case also provides up to a full battery recharge for your smartphone.

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In Pictures: Swiss Army smartphone - 7 tools your phone can replace

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