Nubia NX669J Guide De Démarrage Rapide page 13

SAR compliance for body-worn operation is based on a
separation distance of 10 mm between the unit and the human
body. Carry this device at least 10 mm away from your body to
ensure RF exposure level compliant or lower to the reported level.
Ensure that the device accessories, such as a device case and
device holster, are not composed of metal components. Keep the
device away from your body to meet the distance requirement.
Hardware and software

The certified hardware version of your phone is
NX669J-S_V1AMB.
The certified software version of your phone is
NX669J-S_EUCommon_V3.05.
FCC Caution.

§ 15.19 Labeling requirements.
This device complies with part 15 of the FCC Rules. Operation is
subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause
undesired operation.
§ 15.21 Information to user.
Any Changes or modifications not expressly approved by the
party responsible for compliance could void the user's authority
to operate the equipment.
§ 15.105 Information to the user.
Note: This equipment has been tested and found to comply with
the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential
installation. This equipment generates uses and can radiate
radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful
interference to radio communications. However, there is no
guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference
to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following
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