Zte Blade A3 Prime User Manual page 143

Repetitive Strain Injuries
To minimize the risk of Repetitive Strain Injury (RSI) when texting or
playing games with your phone:

Do not grip the phone too tightly.

Press the buttons lightly.

Use the special features which are designed to minimize the
times of pressing buttons, such as Message Templates and
Predictive Text.

Take frequent breaks to stretch and relax.
Emergency Calls
This phone, like any other wireless phone, operates using radio
signals, which cannot guarantee connection in all conditions.
Therefore, you must never rely solely on any wireless phone for
emergency communications.
Loud Noise
This phone is capable of producing loud noises, which may damage
your hearing. Turn down the volume before using headphones,
Bluetooth headsets or other audio devices.
Phone Heating
Your phone may become warm during charging and during normal
use.
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