4
Chapter 1 Before you begin
1.1 Note and Warning
-
747ProS uses + Lithium-Ion battery. If 747ProS is used in temperature lower than -10 C
°
or higher than 60C
°
, its battery charging capability will decrease. Please leave the
747ProS far from heat or high temperature environment. In addition, do not expose your
747ProS in temperature higher than 140 F
°
/60C
°
. If you do not follow these rules, the
battery inside 747ProS may overheat, explode or burn itself, and this will lead to very
serious damage. The + Lithium-Ion battery inside the 747ProS should be recycled.
-
For a long period not using 747ProS, take out the battery and store it in dry/cool places.
-
For safety, keep the 747ProS and all accessories out of children’s reach.
-
The manufacturer assumes no responsibility for any damages and loss resulting from the
use of this manual, or from deletion of data as a result of malfunction, dead battery, or
from misuse of the product in any way.
-
Use only the supplied and approved accessories. Unauthorized accessories, modifications
or attachments could damage the 747ProS, and may violate regulations governing radio
devices.
-
Use a dry, clean soft cloth to clean the unit. Do not use harsh cleaning solvents,
chemicals, or strong detergents.
-
Do not attempt to open the 747ProS yourself. Unauthorized hacking may damage the
unit, and void your warranty.
