Acer LS830 User Manual page 3

Power Adaptor:
Always use original power adaptor with the device. Unqualified 3
this device and may cause burning and injury.
Operating Environments:
Respect special regulations in force in any area, and always switch off your device when its use is
prohibited, or if it could cause danger. When connecting the phone or any accessory to another
device, read the user manual for detailed safety instructions. Do not connect incompatible products. It
is recommended that the equipment should only be used in the normal position for proper operation
and personnel safety.
The device operates at the environment temperature -10℃~ +45 ℃ or 14℉~ 113℉. The usage out
of this temperature range may damage the device and may meet device auto power off.
Medical Devices:
Most medical devices can be protected from the RF signal of LS830, but not all of them. If you have
any questions or need more information, consult your doctor or the manufacturer of your medical
device.
High Volume Usage:
Exposure to loud noise from any source for extended periods of time may affect your hearing. The
louder the sound, the less time is required before your hearing could be affected. To protect your
hearing:
 Limit the amount of time you use handsets or headphones at high volume.
 Avoid turning up the volume to block out noisy surroundings.
 Turn the volume down if you can't hear people speaking near you.
 If you experience hearing discomfort, including the sensation of pressure or fullness in your
ears, ringing in your ears, or muffled speech, you should stop listening to the device through
the handset or headphones and have your hearing checked.
Excessive sound pressure from earphones and headphones can cause hearing loss.
rd
party power adaptor may damage