User's Manual

usage of the accessories，Only use batteries, chargers and accessories approved by
the manufacturer. Usage of other types of batteries, chargers and accessories may
result in violence of the certification or warranty terms or even lead to danger，Keep
the equipment dry，Don't keep the equipment in under cooled places; otherwise, when
the temperature rises to normal, moisture may be generated within the equipment,
resulting in damage of the circuit board. .Only use matched or approved antenna .