Motorola C261 - Manual (Page 66)

A-8 Safety Information
Seizures/Blackouts
Some people may be susceptible to epileptic seizures or blackouts
when exposed to flashing lights, such as when playing video
games. These may occur even if a person has never had a previous
seizure or blackout.
If you have experienced seizures or blackouts, or if you have a
family history of such occurrences, please consult with your
physician before playing video games or enabling a flashing-lights
feature (if available) on your mobile device.
Discontinue use and consult a physician if any of the following
symptoms occur: convulsion, eye or muscle twitching, loss of
awareness, involuntary movements, or disorientation. It is always
a good idea to hold the screen away from your eyes, leave the
lights on in the room, take a 15-minute break every hour, and stop
use if you are very tired.
Caution About High Volume Usage
Listening at full volume to music or voice through a
headset may damage your hearing.
Repetitive Motion
When you repetitively perform actions such as pressing keys or
entering finger-written characters, you may experience occasional
discomfort in your hands, arms, shoulders, neck, or other parts of
your body. If you continue to have discomfort during or after such
use, stop use and see a physician.