Beyerdynamic FREE BYRD, Operating Instructions Manual

Page: 8 / 138

8/22 Safety instructions
Reducing perception of ambient noise
In-ear headphones drastically reduce perception of ambient noise. Using in-ear
headphones in road traffic can be potentially dangerous. The user’s hearing must not be
impaired to the extent that it causes road safety risks.
► Do not use the in-ear headphones within the action area of potentially dangerous
machines and tools.
► Avoid using in-ear headphones in situations where hearing must not be impaired –
particularly in road traffic, when crossing a level crossing or on a construction site.
Changed acoustic perception
For many people, wearing in-ear headphones takes some getting used to because the
acoustic perception of their own voice and body as well as the inner ear sounds that
occur while walking is different from the “normal” situation without in-ear headphones.
However, this initially strange sensation usually diminishes after wearing them for a while.
Cleaning
Dirt on the eartips and the formation of a warm and humid climate in the ear canal can
cause an increased level of germs, which can increase the risk of an ear canal infection.
►
Regularly clean the eartips.
General care instructions
►
Use a soft cloth moistened with water to clean all parts of the True-Wireless head-
phones. Make sure that no liquid enters the housing or the transducer.
► Do not use cleaners containing solvents, as these can damage the surface.
Risk of swallowing
►
Keep small parts, such as product, packaging and accessories, away from children
and pets. They constitute a choking hazard if swallowed.
Power and connecting cable
Use only the cable we supply to connect the unit for both charging and connecting to a
laptop.
Using the batteries
Danger from heat, water and mechanical stress
Excessive heat, water and mechanical stress may cause explosion, heat, fire, smoke or
fumes. Injuries and irreversible damage to the battery may result.
►
Do not expose the battery to excessive heat, direct sunlight or fire. There is a risk of
explosion, fire, smoke or gas.
►
Do not subject the battery to mechanical stress (e.g. crushing). This may cause
irreversible damage to the battery, or explosion or injury.
►
Do not open the housing or remove the battery.