Envizen ED8890A Quick Start Guide - Manual (Page 6)

The usage
this range
Be sure to u the
Operating instructions: The internal battery automatically charges when the device is connected to the AC adapter
through a main power outlet. The internal rechargeable battery lasts up to 2.5 hours while fully charged.
Warning: To prevent fire or shock hazard, do not expose the device to water, rain, or moisture.
Never expose battery pack to temperature above 140 °F.
Do not disassemble
Do not incinerate
Car Adapter
car
Caution!