Zte V66 User Manual page 103

 Charge your device within 0 degree Celsius and 50 degree Celsius,
use your device within a temperature range between -10 and +60
degree Celsius, Do not expose your device or its accessory outside
the range of minimum –10 till maximum +60.
 Please check local regulations for disposal of electronic products.
Small Children
Do not leave your device and its accessories within the reach of small
children or allow them to play with it.
They could hurt themselves or others, or could accidentally damage the
device.
Your device contains small parts with sharp edges that may cause an
injury or which could become detached and create a choking hazard.
Demagnetisation
To avoid the risk of demagnetisation, do not allow electronic devices or
magnetic media close to your device for a long time.
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