Lenovo YOGA TABLET 8 Information Manual page 6

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The charging device shows signs of physical damage.
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You want to clean the charging device.
Lenovo is not responsible for the performance or safety of products not manufactured or
approved by Lenovo.
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Prevent hearing damage
Your tablet has a headphone connector. Always use the headphone connector for
headphones (also called a headset) or earphones.
CAUTION:
Excessive sound pressure from earphones and headphones can cause hearing loss.
Adjustment of the equalizer to maximum increases the earphone and headphone
output voltage and the sound pressure level. Therefore, to protect your hearing, adjust
the equalizer to an appropriate level.
Excessive use of headphones or earphones for a long period of time at high volume can be
dangerous if the output of the headphone or earphone connectors do not comply with
specifications of EN 50332-2.
The headphone output connector of your tablet complies with EN 50332-2 Sub clause 7.
This specification limits the tablet's maximum wide band true RMS output voltage to 150
mV. To help protect against hearing loss, ensure that the headphones or earphones you use
also comply with EN 50332-2 (Clause 7 limits) for a wide band characteristic voltage of 75
mV. Using headphones that do not comply with EN 50332-2 can be dangerous due to
excessive sound pressure levels.
If your tablet came with headphones or earphones in the package, as a set, the combination
of the headphones or earphones and the tablet already complies with the specifications of
EN 50332-1. If different headphones or earphones are used, ensure that they comply with
EN 50332-1 (Clause 6.5 Limitation Values). Using headphones that do not comply with EN
50332-1 can be dangerous due to excessive sound pressure levels.
Sound Pressure Warning statement
For the device which tests accordance to EN 60950-1:
2006+A11:2009:+A1:2010+A12:2011, it is mandatory to perform audio tests for EN50332.
This device have been tested to comply with the Sound Pressure Level requirement laid
down in the applicable EN 50332-1and/or EN 50332-2 standards. Permanent hearing loss
may occur if earphones or headphones are used at high volume for prolonged periods of
time.
Important safety and handling information