19
•   Do  not  use  your  device  immediately  after  a  sudden  tempera-
ture change. In such case, it will produce dew inside and out-
side your device, so don’t use it until it becomes dry.
•   Handle  your  device  carefully.  Do  not  drop,  bend  or  strike  it. 
Otherwise your device will be damaged.
•   No dismantling by non-professionals and only qualied techni-
cians can undertake repair work.
•   Operating  temperature  range  of  0°C  ~  +35°C  and  humidity 
range of 5% ~ 95% are recommended.
Using Battery
•   Do  not  short-circuit  the  battery,  as  this  can  cause  excessive 
heat and re.
•   Do  not  store  battery  in  hot  areas  or  dispose  of  it  in  a  re  to 
avoid explosion.
•   Do not disassemble or modify the battery.
•   When  not  using  the  battery  for  a  long  period,  remove  it  from 
your device and store it in a cool dry place.
•   Never use any charger or battery damaged or worn out.
•   Return the wear-out battery to the provider or put it in the ap-
pointed recycle place. Do not put it in familial rubbish.
WARNING:
If the battery is broken, keep away from it. If it taints your skin, wash 
your skin with abundant fresh water and ask doctor help if neces-
sary.