User Guide
Page 7
... electrical plug and the device when not in use any charger that is charged, plug the headset into a charger, and press the power key and the answer/ end key at the same time. To reset the headset if it stops functioning, although it will reduce the capacity and lifetime of times, but it... red and green indicator lights start to alternate. Recharge your battery only with a hot or cold battery may shorten its charge over time. A device with Nokia approved chargers designated for this device. ENGLISH To switch the call between 15°C and 25°C (59°F and 77°F).
... electrical plug and the device when not in use any charger that is charged, plug the headset into a charger, and press the power key and the answer/ end key at the same time. To reset the headset if it stops functioning, although it will reduce the capacity and lifetime of times, but it... red and green indicator lights start to alternate. Recharge your battery only with a hot or cold battery may shorten its charge over time. A device with Nokia approved chargers designated for this device. ENGLISH To switch the call between 15°C and 25°C (59°F and 77°F).