•  
Ideal operating temperatures are 0 °C to 35 °C. Ideal 
storage temperatures are 
-20 °C to 70°C. Extreme heat 
or cold may damage your device or accessories.
•  
Do not expose your device to direct sunlight (such as on a 
car dashboard) for prolonged periods. 
•  
To protect your device or accessories from fire or 
electrical shock hazards, avoid rain and moisture.
•  
Keep the device away from sources of heat and fire, such 
as a heater, microwave oven, stove, water heater, 
radiator, or candle.
•  
Do not place sharp metal objects, such as pins, near the 
earpiece or speaker. The earpiece may attract these 
objects and result in injury. 
•  
Stop using your device or applications for a while if the 
device is overheated. If skin is exposed to an overheated 
device for an extended period, low temperature burn 
symptoms, such as red spots and darker pigmentation, 
may occur. 
•  
Do not touch the device's antenna. Otherwise, 
communication quality may be reduced. 
•  
Do not allow children or pets to bite or suck the device or 
accessories. Doing so may result in damage or explosion.
•  
Observe local laws and regulations, and respect the 
privacy and legal rights of others. 
Child's safety
•  
Comply with all precautions with regard to child's safety. 
Letting children play with the device or its accessories 
may be dangerous. The device includes detachable parts