HUAWEI TECHNOLOGIES CO., LTD.
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12. Make the Talk Time as Short as Possible
If the talking time is too long, headache, fatigue, and pearl eye may occur.
13. Do not Hold your Cell Phone too Close to Your Ears
Super short wave is harmful to your cerebra. However, the effect decreases dramatically if the
distance between the earpiece and your head is about 4cm.
14. Keep the SIM Card with Caution
The SIM card can be removed from your cell phone. Make sure it is beyond the reach of children
if you remove it from your cell phone.