User manual

EN 3
Operating and storage temperatures
and humidity
• Store in a place where the
temperature is between -20°C (-4°F)
and 50°C (122 °F) with up to 90%
relative humidity.
• Operate in a place where the
temperature is between 0°C (32°F)
and 45°C (113 °F) with up to 90%
relative humidity.
• Battery life may be shorter in high or
low temperature conditions.
 If the headset is not used for a long time, the
rechargeable battery will begin to lose its
charge. To avoid this loss, please fully charge
the battery at least once every three months.
 To avoid risk of re, the equipment is supplied
only by external power source which output
shall comply with PS1 (with output capacity
less than 15W).