Lenovo ThinkSmart Hub User Manual page 47

Battery warnings:
• Risk of explosion if battery is replaced by an incorrect type.
• Dispose of used batteries according to the instructions.
Use earphones, headphones, or a headset
• If your hub has both a headphone connector and an audio line-out connector, always use the headphone
connector for earphones, headphones, or a headset. However, the headphone connector does not
support the microphone of the headset.
• If your hub has both a headset connector and an audio line-out connector, always use the headset
connector for earphones, headphones, or a headset.
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 hub complies with EN 50332-2 Sub clause 7. This specification limits
the hub'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) or 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 Lenovo hub came with headphones or earphones in the package, as a set, the combination of the
headphones or earphones and the hub 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.
Choking hazard notice
CHOKING HAZARD – Product contains small parts.
Keep away from children under three years.
Plastic bag notice
DANGER
Plastic bags can be dangerous. Keep plastic bags away from babies and children to avoid danger of
suffocation.
Appendix A. Important safety information
41