Care and maintenance, Responsible listening, Care and maintenance responsible listening – Samsung t139 User Manual
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Health and Safety Information 95
communication at the scene of an accident; do not cut off the call 
until given permission to do so. 
Care and Maintenance
Your mobile device is a product of superior design and 
craftsmanship and should be treated with care. The suggestions 
below will help you fulfill any warranty obligations and allow you 
to enjoy this product for many years:
Keep your Samsung Mobile Device away from:
Liquids of any kind
Keep the mobile device dry. Precipitation, humidity, and 
liquids contain minerals that will corrode electronic circuits. If 
the mobile device does get wet, do not accelerate drying with 
the use of an oven, microwave, or dryer, because this may 
damage the mobile device and could cause a fire or 
explosion. 
Do not use the mobile device with a wet hand. Doing so may 
cause an electric shock to you or damage to the mobile 
device.
Extreme heat or cold
Avoid temperatures below 0°C / 32°F or above 45°C / 113°F.
Microwaves
Do not try to dry your mobile device in a microwave oven. 
Doing so may cause a fire or explosion.
Dust and dirt
Do not expose your mobile device to dust, dirt, or sand.
Cleaning solutions
Do not use harsh chemicals, cleaning solvents, or strong 
detergents to clean the mobile device. Wipe it with a soft 
cloth slightly dampened in a mild soap-and-water solution.
Shock or vibration
Do not drop, knock, or shake the mobile device. Rough 
handling can break internal circuit boards.
Paint
Do not paint the mobile device. Paint can clog the device’s 
moving parts or ventilation openings and prevent proper 
operation.
Responsible Listening
Caution! Avoid potential hearing loss.
Damage to hearing occurs when a person is exposed to loud 
sounds over time. The risk of hearing loss increases as sound is 
played louder and for longer durations. Prolonged exposure to 
loud sounds (including music) is the most common cause of 
preventable hearing loss. Some scientific research suggests that 
using portable audio devices, such as portable music players and 
cell phones, at high volume settings for long durations may lead 
to permanent noise-induced hearing loss.