Lenovo A390 Panduan Pengguna - Halaman 15

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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 Mobile phone

complies with EN 50332-2 Sub clause 7. This

specification limits the Mobile phone 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 Mobile phone came with headphones or earphones

in the package, as a set, the combination of the

headphones or earphones and the Mobile 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.

This device has been tested to comply with the Sound

Pressure Level requirement laid down in the

applicable EN 50332-1and/or EN 50332-2standards.

Permanent hearing loss may occur if earphones or

headphones are used at high volume for prolonged

periods of time.