Lenovo S960 Smartphone - Manual (Page 7)

Important safety and handling information
The headphone output connector of Lenovo Phone complies with EN 50332-2
Sub clause 7. This specification limits Lenovo Phone'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 Lenovo Phone came with headphones or earphones in the package, as a set,
the combination of the headphones or earphones and Lenovo Phone 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.
Warning statement:
To prevent possible hearing damage, do not listen at high volume levels for long
periods.