BEFORE YOU USE
Use the Visual Presenter under the rated electrical conditions.
Do not leave the Presenter under direct sunlight or by heaters, or the Presenter may be discolored, deformed, or damaged.
Do not place the Presenter in any humid, dusty, windy or vibrating location. Use the Presenter in the following environmental conditions:
Temperature: 5°C~40°C (41°F~104°F)
Humidity: 30~85% (No condensation)
Use a soft, dry cloth for cleaning. Do not use any volatile solvent, such as thinner or benzine.
Do not directly point the camera lens into the sun, or the camera may be damaged. 
Caring for the batteries :
·If the Presenter is not used for a long time, take out the batteries from the case.
·Do not use rechargeable
·Do not use new and old batteries, or batteries of different types together.
·Do not try to recharge or
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