Sony FE 100-400mm f/4.5-5.6 GM OSS Lens - Manual (Page 114)

Notes on wearing the headset
After use, remove the headset from your ears slowly.
The long-term use of the headset may cause symptoms such as itching and irritation in the ears.
If you experience any of the above symptoms while using the headset, stop using it immediately and consult a doctor
or your nearest Sony dealer.
For long-term use, it is recommended that you remove the headset from your ears on a regular basis.
Other notes
Do not subject the headset to excessive shock as it is a precision device.
The Bluetooth function may not work with a mobile phone, depending on the signal conditions and the surrounding
environment.
If you experience discomfort while using the headset, stop using it immediately.
If water or foreign matter enters the headset, it may result in fire or electric shock. If water or foreign matter enters the
headset, stop use immediately and consult your nearest Sony dealer. In particular, be careful in the following cases.
When using the headset near a sink or liquid container
Be careful that the headset does not fall into a sink or container filled with water.
When using the headset in the rain or snow, or in humid locations
Cleaning the headset
When the headset exterior is dirty, wipe it clean with a soft dry cloth. If the headset is particularly dirty, soak a cloth in
diluted neutral detergent, and wring it well before using it to clean the headset. Do not use solvents such as thinner,
benzene, or alcohol, as they may damage the finish on the surface of the headset or cause other damages.
Do not use the headset near medical devices
Radio waves can affect cardiac pacemakers and medical devices. Do not use the headset in crowded places such as
crowded trains or inside a medical institution.
The headset (including accessories) has magnet(s) which may interfere with pacemakers, programmable shunt
valves for hydrocephalus treatment, or other medical devices. Do not place the headset close to persons who use
such medical devices. Consult your doctor before using the headset if you use any such medical device.
Keep the headset units and charging case away from the magnetic card
The headset units and charging case use magnets. If you bring a magnetic card close to the headset, the card
magnet may be affected and become unusable.
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