KEEP THEM AVAILABLE FOR FUTURE REFERENCE. 1. Do not use the unit in temperature exceeding 158 degrees Fahrenheit or 70 degree Celsius. 2. This unit works on 12 Volts D C. Applying a higher voltage may cause a fire hazard or electric shock. 3. Always place the unit on a dry level surface when not to use nylon case. 4. The unit is intended for use in a single room or vehicle. 5. To reduce the risk of electric shock, do not expose the unit or flexible cord to moisture in any way. 6. Turn the unit o