User's Manual
9
Tobii C-Series User’s Manual
Chapter 2 Safety
aware that it is possible, in a worst case scenario, for temperatures to reach
greater than those stated above in, for example, the trunk of a car on a hot
day. So, storing the device, with batteries installed, in a hot car trunk could
conceivably lead to a malfunction.
Do not disassemble or harm the battery. Pay attention to the
environmental laws and regulations which apply in your area when disposing
of batteries.
For safe operation of the C-Series device, use only charger, batteries and
accessories approved by Tobii Technology.
Do not open the metal casing of the C-Series device, since you may be
exposed to potentially hazardous electrical voltage. The device contains no
serviceable parts.
2.1 Avoiding Hearing Damage
Permanent hearing loss may occur if earphones, headphones or speakers
are used at high volume. To prevent this, the volume should be set to a safe
level. You can become desensitized over time to high sound levels which
may then sound acceptable yet still could be damaging your hearing. If you
experience symptoms such as ringing in your ears, please lower the volume
or stop using the earphones/headphones. The louder the volume, the less
time is required before your hearing could be affected.
Hearing experts suggest the following measures to protect your hearing:
• Limit the amount of time you use earphones or headphones at high
volume.
• Avoid turning up the volume to block out noisy surroundings.
• Turn the volume down if you cannot hear people speaking near
you.
To establish a safe volume level:
1. Set your volume control at a low setting.
2. Slowly increase the sound until you can hear it comfortably and
clearly, without distortion.
2.2 Mounting Warning
The C-Series devices should be mounted according to instructions for
approved mounts or mounting brackets. However, should the device for










