Cardo Systems Cardo S-2 - Manual (Page 5)

5
S-™ Stereo Headphones
Charging Time
Charging the battery fully takes approximately 3 hours.
When the battery is fully charged, the LED will turn blue and remain
on.
When charging is complete, disconnect the charger from the AC wall
outlet and from the headphones. However, leaving them connected
will not damage them.
Talk Time, Music Play Time & Standby Time
The fully charged battery offers up to 8 hours talk time, music play
time and up to 250 hours standby time. When no calls are in progress,
the headphones remain turned on in Standby mode.
Low Battery
When the headphones are on and the battery becomes low, the LED
status indicator flashes red and the headphones emit a beep every
minute. Please recharge the battery as described above.